On Thu, May 12, 2011 at 12:04 AM, Harold Hallikainen wrote: > I just tried several SDHC cards today in my product with the Microchip SD > library. They work great! I'll keep testing more. If I understand correctly, SDHC is a superset of SD. An SDHC card 1 GB or less is guaranteed to work in any SD device, and most SDHC cards 4 GB or less should word in an SD device. You are only likely to run into problems with SDHC cards greater than 4GB. I think. Have you been able to access all of the memory in SDHC cards greater than 4= GB? -p. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .