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From: Fred McKenzie on 23 Dec 2009 11:27
In article <Xns9CEA71A58592A5D4AM2(a)news.eternal-september.org>,
GavinB <invalid(a)nomail.com> 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
From: Arno on 23 Dec 2009 11:11
In comp.sys.ibm.pc.hardware.storage GavinB <invalid(a)nomail.com> 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: arno(a)wagner.name
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
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