[sclug] OT mobile phones

David Given dg at cowlark.com
Mon Dec 17 05:16:26 UTC 2007

ed wrote:
> How much memory can that address on the SD cards?
> (I have a car radio that seems to be capped at 2G cards, with a 4G it
> refuses to make any attempt to read it, or a USB stick of the same size.)

The SD spec maxes out at 2GB. There are some vendor extensions that
allow 4GB, but they're a bit dubious.

There's a *different* spec, SDHC, that allows bigger cards; I've got an
8GB one. It uses the same form factor of device, but it's not
compatible. However, usually SDHC card readers will also read SD cards.

David Given
dg at cowlark.com

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