Is there a model identfier for SD memory?

Does an SD memory card contain a unique identifier? Maybe it has
something similar to the way a hard disk drive has a model number.

I'm hoping I can insert my SD card into a memory reader on my PC and
read off its exact model number.

I want to get some more memory with a similar speed spec to a card I
once bought. My SD card is labelled "2GB Transcend x150" but that's
all the info I can see.

I'm aware that speed ratings such as "x150" can be an inaccurate
indicator of actual read/write performance.



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Posted to relevant groups: hardware, photo and storage

In comp.sys.ibm.pc.hardware.storage GavinB wrote:
Does an SD memory card contain a unique identifier? Maybe it has
something similar to the way a hard disk drive has a model number.

A model number is not unique. a) it applies to a set of drives
and b) these drives can have different construction even with the
same model number. HDD manufacturers have been known to even have
different numbers of platters in disks with the same model number.

I'm hoping I can insert my SD card into a memory reader on my PC and
read off its exact model number.

I want to get some more memory with a similar speed spec to a card I
once bought. My SD card is labelled "2GB Transcend x150" but that's
all the info I can see.

I'm aware that speed ratings such as "x150" can be an inaccurate
indicator of actual read/write performance.

The model number will not help either, see above.

Arno
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email:
GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

In article ,
GavinB wrote:

I want to get some more memory with a similar speed spec to a card I
once bought. My SD card is labelled "2GB Transcend x150" but that's
all the info I can see.

Gavin-

There is a "class" of SDHC card related to speed. Some have a number
printed on the label, like 3 or 4.

Be sure your camera can handle the high capacity SDHC cards. Older
cameras were limited to about 2 GB. If yours is limited, you may
benefit from a faster card, but not a bigger one.

Fred

On Wed, 23 Dec 2009 11:10:18 GMT, GavinB
wrote:

Does an SD memory card contain a unique identifier? Maybe it has
something similar to the way a hard disk drive has a model number.

A manufacturer may, or may not, continue to use the same
controller and flash chip in their same model #. All they
typically guarantee is that it meets "up to" the max read
speed listed with SD, or at least that speed with SDHC.

However, many cards have very light/small ink printing on
the plastic that can tell you exactly what the card is...
but, that doesn't help you buy another of the same unless
you have the physical card in your hand to read off the
markings on it too.


I'm hoping I can insert my SD card into a memory reader on my PC and
read off its exact model number.

Not going to happen.



I want to get some more memory with a similar speed spec to a card I
once bought. My SD card is labelled "2GB Transcend x150" but that's
all the info I can see.

The easiest answer would be buy another Transcent 150X card,
but that is no guarantee it is identical. Another option is
buy any other reputable brand of 150X or better card, since
there are faster than 150X SD cards.


I'm aware that speed ratings such as "x150" can be an inaccurate
indicator of actual read/write performance.

.... true, but it could also mean there is some other 150X
card even faster than the Transcend you have.

Your best bet is reading reviews, the more recent the better
(though today, most would be focusing on SDHC rather than SD
you seem to be seeking), and buy what benched best if it's
worth any possible price difference.

Beyond that, the only highly likely way to get the exact
same pair of cards is buy both at the same time from the
same place.

[Followup-To: rec.photo.digital]

The slime, or, as this nameshifting troll is also known, the
"P&S troll" again mangles truth when it does not spews forth
complete lies. It starts with the stolen, fake email adress ...

Corrections Officer wrote:
Not completely true. There is a "hybrid" type of SD card that is still
being sold by a few providers, targeted at people with older SD-ONLY
cameras. It is 4GB in size.

It's not hybrid, it is an "SD card" that does not comply to the
specs (unless you read them very creatively). It works by pure
chance in some cameras, but noone sane would bet on it.

-Wolfgang

["Followup-To:" header set to rec.photo.digital.]

GavinB wrote:
^^^^^^^^^^^^^^^^^^
I doubt you have permission from infoUSA to use their domain
"nomail.com". Please do not misuse other peoples' domains.

I want to get some more memory with a similar speed spec to a card I
once bought. My SD card is labelled "2GB Transcend x150" but that's
all the info I can see.

Buy a x150 or faster card from a reputable flash memory
maker. There, you are done.

-Wolfgang

On Fri, 25 Dec 2009 16:12:38 +0100, Wolfgang Weisselberg
wrote:

[Followup-To: rec.photo.digital]

The slime, or, as this nameshifting troll is also known, the
"P&S troll" again mangles truth when it does not spews forth
complete lies. It starts with the stolen, fake email adress ...

Corrections Officer wrote:
Not completely true. There is a "hybrid" type of SD card that is still
being sold by a few providers, targeted at people with older SD-ONLY
cameras. It is 4GB in size.

It's not hybrid, it is an "SD card" that does not comply to the
specs (unless you read them very creatively). It works by pure
chance in some cameras, but noone sane would bet on it.

-Wolfgang

Proving that you've never even used any camera that takes SD cards, nor
used any of the 4GB SD cards. Talking out of your ass again. Proving to all
the world again that all you know is what you can imagine and invent about
photography, with no real-life experience with any of the equipment nor
methods.

Thanks again for proving to everyone what a know-nothing
pretend-photographer troll that you truly are.

On Fri, 25 Dec 2009 16:12:38 +0100, Wolfgang Weisselberg
wrote:

[Followup-To: rec.photo.digital]

The slime, or, as this nameshifting troll is also known, the
"P&S troll" again mangles truth when it does not spews forth
complete lies. It starts with the stolen, fake email adress ...

Corrections Officer wrote:
Not completely true. There is a "hybrid" type of SD card that is still
being sold by a few providers, targeted at people with older SD-ONLY
cameras. It is 4GB in size.

It's not hybrid, it is an "SD card" that does not comply to the
specs (unless you read them very creatively). It works by pure
chance in some cameras, but noone sane would bet on it.

-Wolfgang

Here you will find a list with SD-only cameras that are using the 4GB SD
cards, with benchmark tests done on FAT16 and FAT32 formatted cards to
show the speed improvements when formatted in FAT16.

http://chdk.wikia.com/wiki/Benchmarks

All of the information there proving you to be nothing but a total idiot
and just another pretend-photographer role-playing troll who has never been
near any camera nor any SD cards of any type in your lifetime.

Sucks to be you, doesn't it.

D Johnson wrote:

Hello, sliume, liar, idiot. Plonk another sock puppet.
You're sooo easy to see through, any stupid P&S camera can do that.

-Wolfgang