SD & SDHC Memory Cards?

Question

I have just purchased an MP3 on ebay that accepts SD memory cards. I see SD 4Gb cards about but have been told only SDHC cards can be 4Gb and the older SD cards are only up to 2Gb capacity? Can you purchase a non SDHC card at 4Gb capacity?

Answer 1

SDHC is not backwards compatible with SD and that means a 4GB SDHC card will not work in a device designed only for use with SD cards.

So it looks like 2GB will be your limit.

The SD format itself is limited to 2GB. In principle they could be made up to 4GB but that would require the use of FAT32 formatting which isn't part of the standard SD specification (SD uses FAT12 or FAT16 formatting).

So to be safe, and know you are buying the real deal, stick with SD 2 GB. You could always have two SD cards, with different music on them both...

Hope this helps