MMC or SD - MDA II, XDA II, 2060 General

Is there any preference between the two.
So far I have only found the price.
Thanks....

mmc is limited by size (not physical, but how much storage space) - i forget how much is max, maybe 128? maybe less? sd goes up to 512 MB, and 1GB soon..
-arebelspy

mmc is slower and old tech now they have about 512mb tops out
sd is aot faster and can have upto 1gb at the mo

Related

best 512 SD card

I have seen various makes / models on the market and I am thinking about a
SanDisk Ultra II 512 card
Does anyone have any experiance of this model
Ashby
512 SD card
what about a 1gb card has anyone got any suggestions on which one to get the o2 data support said that there are 1gb sd cards out there but all they've tested is up to 512 mb. They are firmly against the MMC cards but they couldn't explain why. The MMC card is cheaper.
Re: 512 SD card
jkn said:
what about a 1gb card has anyone got any suggestions on which one to get the o2 data support said that there are 1gb sd cards out there but all they've tested is up to 512 mb. They are firmly against the MMC cards but they couldn't explain why. The MMC card is cheaper.
Click to expand...
Click to collapse
The 1-GB SD cards only became available for purchase a little over a week ago.
The MMC is cheaper because it has a lower maximum transfer rate. But I have found many stores where the price of MMC and SD cards are the same.
Ultra II sd cards as far as i know only run at ultra speed if your sd-slot support it
ok guys any idea
how much a 1gb sd disk will cost, compatability and where from
cheers john
jkn said:
ok guys any idea
how much a 1gb sd disk will cost, compatability and where from
cheers john
Click to expand...
Click to collapse
As far as I know, the only 1-GB SD card brand available now is SanDisk. The price is around US$395. Other brands will soon follow.
with the price of 1GB compared to 512 and 256 then i'd rather have more cards and switch between them like
1 for goat and sheep p0rn collection
1 for mp3 music
1 gps maps (if i had a gps device)
1 for programs
......
Rudegar said:
with the price of 1GB compared to 512 and 256 then i'd rather have more cards and switch between them like
1 for goat and sheep p0rn collection
1 for mp3 music
1 gps maps (if i had a gps device)
1 for programs
......
Click to expand...
Click to collapse
totally agree
as only one has just come out it's likely to be quite expensive
but if people keep a look out they can let us know when other models come out and where to get the best prices
failing that they could swap their donkey porn collection that takes up less memory !
I use a Kingston 512mB SD, works well in the XDA II, no speed problems or loss of data. I use it mainly for camera images and large data files but also for my regular backup (Sprite Backup Premium) and several applications which I don't use often.
Ed
I have a 512mb ultra ii on order, for quicker access to gps maps and voice etc, and should receive it next week. I'll try to post back here when I've tried it, assuming that there is any discernable difference.
frankly speaking I use regular sandisk 512MB SD card only due to high price for everything with Kingston sticker on it, IMHO kingston has not been manufacturing memory cards for years but branding other manufacturers products, including memory ...
one thing that is of interest to me is .... whether these sandisk ultra II SD cards are really faster and to waht extent, especially considering the fact what is the SD card port in XDA / XDA II, i.e. what is the internal port speed limit as compared with new and speedy cards ??
regards, monika
PinkySlayer said:
I have a 512mb ultra ii on order, for quicker access to gps maps and voice etc, and should receive it next week. I'll try to post back here when I've tried it, assuming that there is any discernable difference.
Click to expand...
Click to collapse
I've just received the ultra ii and although I haven't USED it yet, here are some benchmarks...
Internal Integral SanDisk Ultra II
Read MB/s 1.55 0.13 0.20
Write MB/s 0.10 0.02 0.68
Min Read ms 0.25 0.25 0.25
Max Read ms 1.50 9.75 8.5
Ave Read ms 0.32 4.14 2.43
Total Read ms 813 10368 6089
Min Write ms 0.25 0.75 0.28
Max Write ms 165 108 6.75
Ave Write ms 4.87 28.85 0.72
Total Write ms 12310 72246 1810
I've only done a quick test abd should really have repeated them several times and taken averages. However, this clearly shows that the Ultra is built to WRITE FAST, even blowing away my XDA II's internal storage.
sandisk 256MB
I just bought my second sandisk 256MB works fine for me, i bought it for my new NAVMAN 4410
I use a Kingston 512Mb
Works great, using it mostly for watching divx but I also have some music and GPS maps on it. In Sweden Kingston is much cheaper then Sandisk.
The only strange thing is that Im only able to use 488Mb...
The card was preformated so maybe thats a reason...
Steves digicams did a big test some time ago on compactflash memorys and the ultra memorys wasnt always faster. I would save the money and buy regular, its fast enough for the programs in the XDAII.
/miki
seem to recall that all sd cards give you less then they are labeld because of the secure encryption features which make SD cards different from mmc cards apart from being a bit thicker
has,nt anybody got any price,s?
I paid £129 through eBay.
Sandisk 512 Mb for € 159,-
www.geheugenkaart.be
So around £129 for an Ultra II or around £107 for a 'normal' one - I know which one I'd rather have!
thanks i think its time i get my wallet out.hehe

SD Card Capicity

Can someone tell me the max capacity XDAII can take for SD card? Can I put either a 512 or 1G card in?
Thanks
Both is possible.
AFAIK there is no limit for SD-cards
FWIW, I'm using a 512MB Panasonic SD card and it seems to be OK.
HTH
since the sd card uses FAT16, I think that the limit would be something like 4GB.
but also I think that it should be possible to format a sdcard with multiple partitions.
just tried, under xp, it is also possible to format an sd card as fat32, the xda will read it too.
format DRIVELETTER: /fs:fat32
in that case the maximum size is 32GB.
Thanks!!!!!! All very useful information... Didn't know that you could specify the format.
At the moment, I find 256mb the most economical, although 512mb are only just slightly more expensive than two 256 cards. 1gb cards though are nearly 3 times the cost of 512 ones.
They are small and easily swapped over, and you can fit a lot on a 256 mb card. I can't see any point in buying a 1gb card until the price drops substantially.
That what I thought initially, but because I could get this 1GB card at a really cheap price, well less than £100 each ;-)
Where can u get a 1gb SD card for less than £100 - pls provide a link

Which Memory Card

Hi guy,
I have just recieved my Mda Vario II from T-Mobile and it great.
I need to get a memory card and cant decide what to go for 1Gb Utra II
or a 2Gb from Sandisk.
I want the extra space of the 2Gb but will the Ultra II being faster be better or does it not matter that much on a pda/phone.
I hope that with your experiences with memory cards someone can recommend the best option.
FIA
Hello mutsoft,
My opinion is that speed of the UltraII won't be noticeable. My choice goes to the extra space of the 2Gig memory.
Arnaud.
Arnaud84 said:
My opinion is that speed of the UltraII won't be noticeable. My choice goes to the extra space of the 2Gig memory.
Click to expand...
Click to collapse
This is also my opinion. I have a microsd 1 Giga that is already full. Now i'm looking to by a 2GB memory.
Thanks for your responses so far.
The 2Gb size on a single card does seem to be more usefull
and unless there is any technical reason for the faster card
I will go for that.
Wish i'd seen this earlier - just order UltraII 1GB.
Ah well, maybe by the time i fill this one another gig won't be too expensive
Hi a0-0b,
Still not purchased, still not decided.
Although its a little more expensive i am more concerned
about the impact in performance.
If its not noticable then overall per Gb the 2Gb card is better
priced than the Ultra II 1Gb.

X1 Low Storage Memory

My Sony Ericsson Xperia X1 i s low on memory.if i look at the device information unser settings,what i see is:
CPU:QUALCOMM(R) 7200A
Speed:528Mhz
RAM size:128 MB
Flash size:256 MB
Data bus:32 bits
Storage size:45.18MB
Display resolution:480 x 800
Colors:65536
Bluetooth version:2.0/2.0+EDR
please how do i make it have normal memory because i read that the X1 has an internal memory of 400MB.please help !!!!!
I think that the 256 MB is the normal amount of storage for the X1..
But what I dont understand is your amount of RAM - only 128 MB..?
The normal amount is about 256, or actually 200 in real life.. But 128..??
Are you sure that this info is from an X1..?
My X1 have:
RAM: 256 MB
Flash: 512 MB
i think your unit is faulty
take it back to se .
It could be a prototype or something, i could be wrong though. Don't worry about onboard memory too much, as its going to be next to nothing either way, the RAM is something to worry about however . . .
where did you get it from?
it does sound like a protoype..
You can look behind the battery, think Ive seen that SE has writte "Prototype" on the sticker.
I think it's a prototype too beause the first Xperia Prototypes got 128 MB RAM.
that's weird???
Xperia goes:
QUALCOMM(R) 7200A
Speed: 528 MHx
RAM size : 256 MB
Flash size: 512 MB
Data Bus: 32 bits

why is my sd card only 14.7 gb?

So I bought a 16 GB SD card and I formatted it on my s4 now it's only 14.7 GB
almacncheese said:
So I bought a 16 GB SD card and I formatted it on my s4 now it's only 14.7 GB
Click to expand...
Click to collapse
Have you ever experienced that moment where you insert
your 16GB memory card into the camera only to discover
that this new, freshly formatted card is a nickel short of
15GB? Or a 32GB card turning to 29.8GB once installed?
Have you ever wondered where those GigaBytes are hiding?
The truth is that they are not hiding at all.
It has to do more with the way card companies (and hard
drive companies too) decide to annotate their products.
In English Kilo means one thousand (1000 1 = 1,000), a
Mega is a million (1,000 2 = 1,000,000) , a Giga is a billion
(1,000 3 = 1,000,000,000) and so on (Tera, Peta, Exa, Zetta &
Toyya). This system is called the SI units system .
In Computerish, however, the numbers are a bit different: A
Kilo means 1,024 1 = 1,024, a Mega is 1,024 2 = 1,048,576, a
Giga is 1024 3 = 1,073,741,824 and so on. This is called the
Binary units system.
So there is a difference in what Kilo, Mega and Giga means
and that difference is getting bigger the "stronger" the prefix
is.
For Kilo, the difference is only 2.3%, for Mega it is 4.6% and
for Giga it is 6.8% - see a pattern here?
Back to the memory cards.
Memory cards manufactures choose to use the SI system to
denote cards sizes. Our computers and card readers use
the binary system for size calculation and here is where the
missing Bytes are.
Of course, the card companies are covered, they do mention
this fact on their sites (in a small asterisk, or with hover text
that is revealed when you hover over a small asterisk). Here
are screen shots from three leading cards and hard drive
manufacturers, though they are not the only one to use that
practice:
Sandisk:
Lexar:
Seagate:
If you followed the math, you probably realized that the toll
this calculation method in taking gets bigger the bigger the
data units are. So while the toll on a 1GB memory card in
way smaller than on a 1 tera hard drive. Have a look at this
table to sum things up:
Size SI
units size
Binary
Size
Delta
(%)
Delta
(GB)
512 Mega 536870912 512000000 4.6 0.02
4 Giga 4294967296 4000000000 6.9 0.27
16 Giga 17179869184 16000000000 6.9 1.10
64 Giga 68719476736 64000000000 6.9 4.40
1 Tera 1,099,511,627,776 1,000,000,000,000 9.1 92.68
4 Tera 4,398,046,511,104 4,000,000,000,000 9.1 370.71
1 Peta 1,125,899,906,842,620 1,000,000,000,000,000 11.2 117253.43
Now What?
Now, I think it would be fair if we politely asked memory
card makes and hard drive makers to switch to binary so
they will be better aligned with the way we use them.
almacncheese said:
So I bought a 16 GB SD card and I formatted it on my s4 now it's only 14.7 GB
Click to expand...
Click to collapse
There's always a disclaimer *formatted capacity less* so this is normal
Sent from my SPH-L720 using xda app-developers app

Categories

Resources