Hi All
I have seen that the new 2GB MMC 4 card has been released by Pretec?
It is ment to be the fastest flash memory in the world. hear are the speeds:
Read: 22.5MB/s
Write: 18MB/s
Does any one know if this new MMC 4 cards will work in our XDA II's it says it should work in most SD/MMC slots around today... but regarding speed do you know if we would see any speed increases from SD with this new MMC???
http://www.pretec.com
from tests at least with sd cards the xda2 dont handle all that well compare to most other pocketpc's also worse then xda1 which dont use
the poor internal sd interface that xcale have
you can benchmark using pocketmechanics
and try doing a search people have been posting benchmarks they made with the xda series
Thanks for the reply Rudegar...
Does any one else know any info on the new MMC 4 cards???
well i would asume that they should work
but are they not a bit on the expensive side ?
i mean even with the extre speed if it would help
their price are pretty high
compared to some a few 256MB sd cards
and i dont have any serious issues even with my really really really
slow sandisk sd cards
Die MMC 4 Standard defines 4bit in parallel for data-transmission while AFAIK the MMC has only 1 bit data serial for data.
So it is likely, that it will not work.
Alex
but i'm pretty sure that sd also use 4bit in parallel
but i think the problem with the xda2 is that it's internal xcale interface is a mmc interface which is compatible with sd not the other way around
this is also one of the reasons the xda2 have a slower sd interface then xda1 where it have an external chip because the arm200 dont have that mmc internal interface like xcale400
So MMC are not necessary slower than SD?
Hi...
after reading about the new pretec card I went back to read the articles/posts regarding the difference between MMC and SD...
http://asia.cnet.com/reviews/handhelds/0,39001709,39008492-2,00.htm
http://forum.xda-developers.com/viewtopic.php?t=7901&start=0
http://forum.xda-developers.com/viewtopic.php?t=5513&highlight=sd+mmc
So, if I undestand well now, MMC are not necessary (by definition) slower than SD (this Pretec is faster than the Panasonic?) and not necessary smaller than SD... the only difference boils down to the SD feature...
Rudegar (first all thank you for all the help you are giving in this forum... you are of great example! :wink: ) what do you use your SD card for? In particular, do you watch compressed movies on your XDA without any problems in term of speed?
Finally on SD vs MMC...:
-why do u think Pretec made the 2GB card MMC instead of SD?
-why do you think expansys is pricing MMC higher than SD (look at 256 and 1GB)
http://www.expansys.com/d_storage.asp
so it is not even true that MMC are cheaper than SD...
Mentioning Expansys... what are the best places on the web:
-with widest variety (expansys has recently cut a lot... there are no Panasonic etc... anymore...)
-with the past price (I want to buy one finally!!!)
Thanks,
Chris
i use my sd card mainly for music and a few programs that eat too much space and ebooks and a few video's mainly to brag
in terms of speed then i sometimes get nonsync audio on larger video clips
and when i tried journalbar i had sound clickings so i had to turn it off to listen to music (but i'm not 100% sure that was because of sd speed and not just journalbar acting strange)
and then of cause i use my sd for getting files from a pc that dont have a cradle or other sync cable
using the sandisk cruzer if it dont have a sd reader already
I find my battery goes down much faster with the 256Mb SD card plugged in - would a faster 2Gb MMC card require more power, 1. for higher transfer speeds and 2. for keeping powered up?
Thank you Rudegar!
Good point Madkat...
maybe some with a 1GB memory card who has tried the 256 before can answer us... but I think it would be easier if you open a new thread... something like "SD Card bigger = more power consuption?"
hmmm well. i am expecting my new xda 2 on sunday was thinking of gettin a new mmc on it. whts the max. it supports plz confirm. also whts the standard memory on the phone itself.
I have 128MB, 256MB, 512MB and 1GB SD cards. While I do not have any empirical data to prove it, I do not see any difference in battery consumption between any of the cards. BTW - I have 32, 64 and 128MB MM cards as well.
BRosenow: Any chance you could do a little testing, like leaving MMC & SD cards of same capacity in overnight, and a high capacity SD overnight, and checking the new battery % in the morning? Would be greatly appreciated
I'll give it a go and let you know what I have discovered in a couple of days!
How did the testing go?
How did you go with your testing BRosenow??
Cheers!
Thanks for reminding me. My testing was inconclusive, but there does not seem to be any consistent difference in power drain between the different sizes of SD/MMC cards.
I used the same procedures each night - when I got home from work I put my imate in the cradle to be sure it was powered up to 100%. At 10:00PM I inserted the SD/MMC card and soft-reset the device then placed it on the desk beside my laptop. At 6:00AM I turned on the device and read the meter (using the battery meter in SPB Pocket Plus 2.0) and recorded the % of battery power remaining. My first tests were as follows:
1GB SD 89%
512MB SD 92%
256MB SD 91%
128MB SD 86%
64MB MMC 89%
I was interested to see if the same card consumed the same amount of power each time, so I tried my 1GB SD again, and this time 91% was remaining in the morning.
Other things have kept me from continuing the testing, but my conclusion is that battery drain is not linear based on expansion memory size or type and is influenced by unknown factors, but the precision of the Pocket Plus battery meter could certainly be a factor.
Thoughts?
try leaving it in fligth mode
since variations in signal str's can cause more or less
power requirements depending on how much work the
gsm part is doing that night
I can see that your suggestion is a good idea, though I do not think it would make an appreciable difference in the outcome. A total spread of 6% with the given test parameters, particulary given that a distinct trend was not obvious, does not lend itself to indicate a practical difference in power consumption between types of cards or size of cards. (IMHO )
yeah i just talked about one way to make it a tiny bit less unpredictable
5% is always called the stat error margin and 6% is soo close i doubt there is any relation because size and power requirements
maybe the result would differ a bit if the card were being access'd
not sure doubt there is a world of difference because
these types of cards are used in a world of devices where many i'm sure have amp limiters on their sd power curcit to make sure that a camara malfuction would not kill the sd card
so if like a 512MB card required that much more power then a 64MB card
then many cam's mp3players and ..... would be incompatible with those larger cards
Agreed.
I was tempted to write a little script/batch file that would access a file stored on the card at regular intervals, but I just cannot conceive that there will be a measurable difference, so I didn't bother.
At this point I believe that access times are a more important decision variable in which type/size/brand of card to buy than is power consumption.
Related
I have been having big problems with data being majorly corrupted on my SD card. All the files and folders are either dissapearing or having their contents scrambled. Folder names are also having the names changed to random nonsence.
Now I am starting to think that it could be a heat issue.
After taking the memory card out, it felt very hot and the back of the MDA was very warm too.
Does anyone know of any overheating issues, especially after using wifi for a while?
If you use any high battery consuming application like wifi, the battery will get warm. You can use batti to check battery temp if you want. Sounds like your storage card may be faulty - try reformatting with storage tools - google for it - the demo will format for you.
My Vario gets quite warm when I have Wifi on and I'm charging it simultaneously.
Do you regularly swap your memory card between your Wizard and a desktop/notebook card reader? Some card readers have 'issues' which can corrupt the data on memory cards, especially high-capacity ones.
Well the more i thought about it, the more and more i started to think that i had fallen for the eBay fake memory card scam. Especially as the seller has now un-registered himself.
So i picked up a new 1 gig card on the way home from work. It seems to work just fine and the tranfer speeds have increased massively.
I am a happy bunny now (although i wasted my cash on a duff card). But i will let you know if the same problems happen again.
Hi all.
I have read many posts about different experiences and possible issues with hard drive. IMHO & from personal experience of using HDD in Smartphone etc..it is best to install ALL programs to either device memory or SD card. Use your MD solely for data storage and media (photos, movies and Music).
Personally, I would, like wu, install all GPS software to SD card, as it will ensure that the shock resistant technology won't even be needed for sensitive programs.
The HDD is a mechanical device peeps, it will inevitably put more of a strain on the battery.
Simple test for all you owners of the Athena:
1) Choose any movie and transfer a copy to your SD card and a copy to the Micro Drive.
2)Ensure your battery is fully charged at the mains then disconnect the mains and use TCPMP to bench-test the entire movie from MD....look at media properties afterwards and take a snapshot of all the details or note it down....now check battery consumption.
3) Recharge battery to max again and repeat the process using the SD card and record the results.
If you find the MD is performing better (I'd be happily surprised) then technology has moved on considerably in the last few months. If however SD card is performing better, power consumption wise, then you know for sure which will last you longer.
Whatever the result is I will still be setting my Ameo (when I get it ) as stated above, but it would be interesting to see from TCPMP what speeds the movie is benched at from both storage mediums.
mackaby007 said:
Hi all.
I have read many posts about different experiences and possible issues with hard drive. IMHO & from personal experience of using HDD in Smartphone etc..it is best to install ALL programs to either device memory or SD card. Use your MD solely for data storage and media (photos, movies and Music).
Personally, I would, like wu, install all GPS software to SD card, as it will ensure that the shock resistant technology won't even be needed for sensitive programs.
The HDD is a mechanical device peeps, it will inevitably put more of a strain on the battery.
Simple test for all you owners of the Athena:
1) Choose any movie and transfer a copy to your SD card and a copy to the Micro Drive.
2)Ensure your battery is fully charged at the mains then disconnect the mains and use TCPMP to bench-test the entire movie from MD....look at media properties afterwards and take a snapshot of all the details or note it down....now check battery consumption.
3) Recharge battery to max again and repeat the process using the SD card and record the results.
If you find the MD is performing better (I'd be happily surprised) then technology has moved on considerably in the last few months. If however SD card is performing better, power consumption wise, then you know for sure which will last you longer.
Whatever the result is I will still be setting my Ameo (when I get it ) as stated above, but it would be interesting to see from TCPMP what speeds the movie is benched at from both storage mediums.
Click to expand...
Click to collapse
I agress, that is a good way to test it. I have broken my SD card so i can't test it now, but personally i will install all the programs and navigation software on SD, and move the music, movie file to MD.
However i should let you guys also know, i have tested the writting and reading speed between these two using Pocket_Mechanic PRO, and the MD result is much higher than sd for some reason....
wu5262 said:
I agress, that is a good way to test it. I have broken my SD card so i can't test it now, but personally i will install all the programs and navigation software on SD, and move the music, movie file to MD.
However i should let you guys also know, i have tested the writting and reading speed between these two using Pocket_Mechanic PRO, and the MD result is much higher than sd for some reason....
Click to expand...
Click to collapse
Interesting Wu. seems like MD hardware has made significant improvements.
My biggest concern is that if I install to MD and it by chance fails, I will have lost everything, but to SD, I don't foresee major problems.
I think when I get my Ameo, I will do a full setup between Device memory & MD and do a full backup with Spb Backup to SD card.
Then hard reset and do a full set-up to device memory & SD card, also with a full backup to sd card.
Save both back-up files to PC, just in case.
Then give each method a trial run for a week to see which, if any yields better results.
Hope you get your new SD card soon. So is the Athena SDHC compatible then? I think I read one of your posts somewhere that you had to rename the SD card to 'Storage Card' and then all worked well. Is that right Wu? And what is the largest available SDHC card on the market right now? Is it 8Gb?
I hope so. That would effectively give us in excess of 15Gb of storage space. Woohoo.....that's almost comparable to the Sony UMPC with 16Gb in-built Flash memory!!
Makes one wonder what is truly possible to do with the Athena.....dual boot O/S's? WM6 & Linux (when they get it functioning as reliably as WM O/S's).
This all getting quite exciting....possibilities possibilities.
mackaby007 said:
Interesting Wu. seems like MD hardware has made significant improvements.
My biggest concern is that if I install to MD and it by chance fails, I will have lost everything, but to SD, I don't foresee major problems.
I think when I get my Ameo, I will do a full setup between Device memory & MD and do a full backup with Spb Backup to SD card.
Then hard reset and do a full set-up to device memory & SD card, also with a full backup to sd card.
Save both back-up files to PC, just in case.
Then give each method a trial run for a week to see which, if any yields better results.
Hope you get your new SD card soon. So is the Athena SDHC compatible then? I think I read one of your posts somewhere that you had to rename the SD card to 'Storage Card' and then all worked well. Is that right Wu? And what is the largest available SDHC card on the market right now? Is it 8Gb?
I hope so. That would effectively give us in excess of 15Gb of storage space. Woohoo.....that's almost comparable to the Sony UMPC with 16Gb in-built Flash memory!!
Makes one wonder what is truly possible to do with the Athena.....dual boot O/S's? WM6 & Linux (when they get it functioning as reliably as WM O/S's).
This all getting quite exciting....possibilities possibilities.
Click to expand...
Click to collapse
Yes i am very exciting as well, Athena has got lots of possibilities.
Anyway, i think SDHC still not function very well,, or it could just be my card is fake ! so i go for the sandisk ultra 2 GB this time (non SDHC). The one i bought before is transcend SDHC 4G. don't know is there any bigger one, but i will suggest all Athena here but the normal mini-sd now, and wait a bit until there are more choice for SDHC. i think it's not very stable at this moment either to do with card or rom or machine.
wu5262 said:
Yes i am very exciting as well, Athena has got lots of possibilities.
Anyway, i think SDHC still not function very well,, or it could just be my card is fake ! so i go for the sandisk ultra 2 GB this time (non SDHC). The one i bought before is transcend SDHC 4G. don't know is there any bigger one, but i will suggest all Athena here but the normal mini-sd now, and wait a bit until there are more choice for SDHC. i think it's not very stable at this moment either to do with card or rom or machine.
Click to expand...
Click to collapse
Thanks for that Wu. Standard SD card it is then. They come up to at least 4 GB since last year, so a bigger version is imminent if not already on the market.
Oh am I sorry to report that I am having serious issues with this Micro Drive of the Athena.
SD wins hands down for me...like MD is snails pace in comparison.
mackaby007 said:
Oh am I sorry to report that I am having serious issues with this Micro Drive of the Athena.
SD wins hands down for me...like MD is snails pace in comparison.
Click to expand...
Click to collapse
Also i notice one thing, even you got your Ameo later then i do, but my ROM version is newer for some reason
Here is mine: ROM 1.24.709.3
Strange....
wu5262 said:
Also i notice one thing, even you got your Ameo later then i do, but my ROM version is newer for some reason
Here is mine: ROM 1.24.709.3
Strange....
Click to expand...
Click to collapse
That may explain why I'm having problems then. Well I suppose it's not that negative after all then as it seems that the Ameo ROM may be suffering similar issues to the X7500 Rom. Still hope for the future then.
mackaby007 said:
That may explain why I'm having problems then. Well I suppose it's not that negative after all then as it seems that the Ameo ROM may be suffering similar issues to the X7500 Rom. Still hope for the future then.
Click to expand...
Click to collapse
well, actually you want to avoid the same problem that the Advantage have right now, basically, if you take Advantage on the road, you are likely to damage some sector on the Micro Drive when you come back, that's their ROM problem, as you can see, it's quite a big issue, so that must fix it before they release it.
I don't think Ameo has the same problem, but it so, it's bad because until you update the Rom, you probably damage the Micro Drive already.....
a stupid trick: connect your blackstone to the PC in "drive mode", and defragment it from the PC by right-clicking on the disk drive, properties --> tools-->defragment!
...no need of special software...
i knew that it is not reccomended to defragment flash drives/cards
Why would you defrag? No heads to move to the appropriate sector, no gain from defrag.
On other devices i used PocketMechanic very often to defragment cards, repair of loose clusters and such card stuff. Allways without any problem.
But PocketMechanic doesn't work stabil on the HD, be careful!
no moving parts of flash mean seektime is very very low
and as such fragmentation dont slow things down
and flash having a limited number of writes before it dies
like a cd-rw/dvd-rw just more of them
so defragging flash mem lowers it's life because of the writes
and dont speed things up because seektimes is not an issue
memory cards are older than the blackstone!
tons of information on the topic, let's start from the internal one:
http://wiki.xda-developers.com/inde...ocket PC memory cards? Do I need this at all?
I think we may look at memory cards in the same way as a SATA SSD. In this case you can consolidate free space, which is excessively lighter on the writes than an old fashion full defrag.
Software that offers this option is available, and one example is Perfect Disc 10 and 11 (to my experience/knowledge).
So my advise is that if you need to defrag your SD card, which is a type of solid state drive, try to use free space consolidation only. This will be much easier on the wearing of the cells. I'm not quite sure of the P/E specs of SD Cards, or if they provide some wear leveling, but I'm reluctant to believe the latter is provided today for SD Cards like it is for most SATA SSD's.
I think SD card defragmentation is worth it when you have a HUGE and SLOW SD card.
I have a 32Gb SD card (from Kingston) in my Nexus One. I use Google Music Beta, Google Listen and Titanium Backup a lot! Since I reinstall/often upgrade my phone (I'm a geek after all and I'm totally happy!), the Music Beta Cache if often wiped out, I do daily Titanium Backup tasks and at least 3-5 podcasts are downloaded/wiped everyday.
This means a lot of fragmentation is "building up" on my SD card. Since, it is a slow SD, I often experience sluggishness or long load time even after a "fresh" install. The OS must read large files that are splitted on my VERY slow SD card, this does not help!
The problem is to get real numbers to prove this, It is mostly noticeable by navigating through the UI and/or loading some apps.
This was my 2 cents...
My battery is draining like crazy due to the 2gb Micro SD that comes as standard.
However, I'm looking to buy a 16gb class 6, (specifically Peak 16gb card) but I don't necessarily want to part with the cash if I'm still going to have the same issues.
So, on to my question: Is there a specification I should be looking for on a Micro SD card that allows it preserve power - or at least not drain all of my battery?
Thanks!
What makes you so sure it's the Micro SD that's draining your battery? The HD2 has a very poor autonomy anyway. Have you compared battery drain with and without the microSD inserted?
Yes, completely sure it's the micro SD as I have tested the battery life without the SD inserted and it's improved substantially.
I would guess you have a faulty SD card, as it should not use any battery power except when being read or written to.
In normal use, memory card should make no difference to battery life.
Same Problem here.. my Samsung 8gb Class 6 SD drains battery like crazy!
I use an Sandisk 8 GB speed 4 and have no problems.
How long can you use it with the sd card in it?
My solution...
Hi, yeasterday i got my trandscend 8GB class 6 microSDHC card and i put it into phone. Phone goes lagy and drain battery like mad. I try to get some information on internet, but without succes, so i decide to try something myself
1. test card in computer (using 3 different readers) = no problem
2. test card in digital camera (using 2 different camera) = no problem
3. test in HD2 again = problem
4. get back my old class 4 card and no problem...
5. find 5 differencies game begins...
so, i found that my not working card is formated with 32k blocks, so i reformat card in PC to 4096 block size and put it into phone... and now it works without problem in phone!
final solution (works for me):
1. format with 4096 block size
2. put card to phone and wait till it creates his DB files in document folred on card
3. remove it from phone and copy your data to card
4. put card back to phone
3. test result and write respons here
I hope it will help
yes surely the micro sd card that comes from HTC drains the battery...its the main culprit!!!
My phone was laggy and slow
Once I had my battery level at 86% so i removed the card restarted the phone...
to my wonder the battery level showed 87% and the performance of the phone was like 2x...
i was really shocked!!!!
So surely its the microsd card problem..
all the members must test their phones battery performance without the card in it...
also i will try the above procedure to format the card and will post the results...
Marwyn,
what a clever idea you had! Thanks a Lot!
I've been experiencing microSD card freezes with my new SanDisk 16Gb - it was disappearing and reappearing in file explorer, or sometimes hanging the device completely.
Formatting in the phone with bundled utility didn't help, but formatting with win7 ad this small block size helped 100% - now it works like charm.
This solution is not obvious - so I think it deserves to be put in the FAQ.
Thanks again
Marwyn said:
Hi, yeasterday i got my trandscend 8GB class 6 microSDHC card and i put it into phone. Phone goes lagy and drain battery like mad. I try to get some information on internet, but without succes, so i decide to try something myself
1. test card in computer (using 3 different readers) = no problem
2. test card in digital camera (using 2 different camera) = no problem
3. test in HD2 again = problem
4. get back my old class 4 card and no problem...
5. find 5 differencies game begins...
so, i found that my not working card is formated with 32k blocks, so i reformat card in PC to 4096 block size and put it into phone... and now it works without problem in phone!
final solution (works for me):
1. format with 4096 block size
2. put card to phone and wait till it creates his DB files in document folred on card
3. remove it from phone and copy your data to card
4. put card back to phone
3. test result and write respons here
I hope it will help
Click to expand...
Click to collapse
Is it possible to format with 4096 block size in XP? How?
Doesn't this waste a ton of space on the card compared to a 32 block size?
donalgodon said:
Is it possible to format with 4096 block size in XP? How?
Doesn't this waste a ton of space on the card compared to a 32 block size?
Click to expand...
Click to collapse
4096 block means each file will take at least 4096 bytes. Most of your files are at least this size, so it won't matter much.
I have the same poor battery performance problem. I use an 8gb clas 4 Silicon Power sdhc. After reading this post, i format it with 4096 but the benchmark gave to me smaler speeds, so i make it back with 32.
I used Pochet Mechanic. Hardware performance index, 691 (4096) and 751 (32). At file system read and write speed was double with 32.
Till now everything i tried was unsuccessfully. Power cord unplugged about 1 o'clock in the night for having the alarm near me in the morning, i wake up at 7 with 15% battery
1. I am glad to share expirience...
2. Speed is not that bad in 4096 blok size, because there is no need to be fastest but working I hope for some drivers patch...
Please share if you find some other solution (now i am happy for working card no matter of speed)
donalgodon said:
Is it possible to format with 4096 block size in XP? How?
Doesn't this waste a ton of space on the card compared to a 32 block size?
Click to expand...
Click to collapse
it's 4096 bytes vs 32 kilobytes means 32*1024 bytes block size, so waste is 32k block size. Anyway in these days with 8,16 and soon 32GB card 32k blocks are OK. Speed can be different, for reading big files like photos is better bigger block size and for small is no difference. So, explanation, for DB and applications where we need huge files on file system, use maximum block size and for small files use small blocks, because all files are "rounded" to size of block (1byte file occupies 32kilobytes on media with 32k block size)
Marwyn said:
1. I am glad to share expirience...
2. Speed is not that bad in 4096 blok size, because there is no need to be fastest but working I hope for some drivers patch...
Please share if you find some other solution (now i am happy for working card no matter of speed)
Click to expand...
Click to collapse
Of course, this is the idea, to share experience. Lucky me i bought the first bigger card i found in short time, and i didn't have problems with it.
I found the problem that bothered me: i uninstalled the antivirus (NOD). 6% battery overnight, and now in the evening still have 70% power.
just a note, your battery will do much better if you charge it unpowered.. (like with usb). I think it also helps to drain it completly at least once before you use it..
I drained it last night playing a video untill it died, then again with bootloader, charged with usb over night.. I can't believe I have still 80% left after today.. haven't played much with it but made for an hour worth of calls and 10 smss.. and every auto update you can think of is enabled every hour.. bluetooth headset connected all day..
btw I have a sandisk 16gb HC card, I formatted it with the phone before I used it, as that seemed logical..
Sorry for the dumb question, but how can one charge it unpowered? Does the HD2 charge via USB port?
Either you switch OFF your Leo (long pressing red button) or enter the bootloader-modus. I prefer a complete switch-off, so that the battery itself decides its full
and YES, it is a usb port
the micro sd battery drain problem, does it drain battery only when the device is turned on? or even in standby mode
I have Wizcode Defragment and ScanDisk on my HD2, nearly every time that I defrag I get an error message stating 'Errors were found on volume "storage card". The volume cannot be defragmented. Please check the volume for errors first and try defragmenting again'.
I then run ScanDisk which finds a number of invalid/lost clusters, yesterday there were over 200 lost clusters and today 27.
Is this anything to be concerned about? If so, what steps should I take to remedy?
Thank you for your assistance.
u defrag the Storage Card while it's in your HD2?
denizenx said:
u defrag the Storage Card while it's in your HD2?
Click to expand...
Click to collapse
Yes. With Wizcode Defragment Mobile I do not think there is an alternative.
defrag ing your sd card will reduce its life fairly significantly.flash memory has a limited number of write cycles, so defragmenting will use up quite a significant number of these cycles.
but more to the point .... my card always comes up as containing errors whenever I put it in my pc card reader, and asks if I want to fix it. it has been doing this for around 2 years and I've always chosen no, and never had any issues.
samsamuel said:
defrag ing your sd card will reduce its life fairly significantly.flash memory has a limited number of write cycles, so defragmenting will use up quite a significant number of these cycles.
but more to the point .... my card always comes up as containing errors whenever I put it in my pc card reader, and asks if I want to fix it. it has been doing this for around 2 years and I've always chosen no, and never had any issues.
Click to expand...
Click to collapse
Thank you for your reply. I was not aware that defraging a card reduced its life.
no worries.
don't lose any sleep over it,I believe the rewrite cycles are somewhere in the region of 10,000 cycles, so one or two defrags is neither here nor there, but I know how addictive de fragging can be, so doing the whole card even once per week will soon mount up.
personally if I were you and you are worried, I'd use the pc to scan and fix the card.
yeah forget about dragging your card.
get a kettle and a card reader.
copy thee contents of the card to your pc (in a new folder some where)@ put the kettle on while its copying. when is done format your card copy the contents back again to your nice shiney clean card. go make a cup of tea while they are copying back
the card will now be defragged
Apart from being a little harmful, defragmenting flash memory is also useless as there are no moving parts to suffer from fragmentation.
right
I concur. Defragging volumes on solid state media, like anything other than conventional harddisks, is not in any way contributing in any practical performance increase.
There are some benchmark tools for winmo out there. Just wait untill your card is realy fragged, run the benchmark, defrag, and run the test again. You will see no performance increase.
As stated, it's the moving parts that hate fragmented volumes, your HD2 has none, beside the buttons when you press them.
You shouldn't bother.
You should however get a solid state drive (SSD) for your desktop or laptop. It'll make you happy.
Broke, but happy.
(Check tests on internet, there is quite a lot difference between SSD's)
Best to spend that time researching performance of different SD cards. I for instance am very content with my 8 GB Transcend SDHC, some kind of superspeed series. It writes allmost 20MB/s in my desktop cardreader.
Nice.
It realy doesn't care what part of the 8 GB it needs to access to get you your file. I think I saw some article stating the difference is measured in µs. I don't think you can notice µs's, even when they bring their entire family of µs's.
Research tweaking cache sizes and pagepool. Might help with performance, depending on how you use your device.
Hope this helps.
Thank you all for your helpful advice.