XD Picture Card
 

Could somebody please explain the difference (in simple terms) between XD type H & M picture cards. I want to buy some for my camera but I am not sure which type to get. I have a Fuji card and an Olympus card but neither says type H or M on them.
Thanks in advance.
CC

There is a compatibilty list here:

http://www.olympus.co.jp/en/support/.../di000374e.cfm

I can not remember exactly why there different types though.

From Wikipedia:

The original XD cards were available in 16 MB—512 MB capacities.

As of August 2006, Type M cards are available in sizes from 256 MB to 2 GB. However, the Type M suffers slower read-write speeds than the original cards.

The Type H card offers higher data rates than Type M cards (theoretically as much as 3 times faster). As of 2006, Type H cards are only available in 256MB, 512 MB and 1 GB capacities.

Compatibility lists are available for Olympus (PDF format) and Fujifilm

RC

A few of the Olympi will not accept the M or H cards. Check the compatibility list very carefully.