Memory Cards
QMemory is compatible with pretty much every product. prices drop quickly, so these prices are probably out of date. SDHC cards are only compatible with SDHC devices with the SDHC logo. Standard SD cards are compatible with both SD and SDHC devices. There is no longer an 8GB QMemory SD card.
SD & SDHC (incliding Mini- & Micro-) cards, available from flash-memory-store $8-85 (64MB-32GB)
to give you an idea, on Mar 28 a 4GB SD card was $23 and a 1GB was $13. The mini's come with an SD adapter. Note: SD can be plugged into an SHDC slot, but an SHDC card should not be plugged into an SD slot! Check/know your product's requirements before buying!
Mini-SD cards, available from flash-memory-store $17-23 (1GB-4GB, 8/29/2009)
nearly every model includes SD adapter.
Micro-SD Cards, available from flash-memory-store $6-58 (512MB-8GB, 8/29/2009)
nearly every model includes SD adapter.
Memory Stick Pro Duo, available at flash-memory-store $18-75 (256MB-8GB, 8/29/2009)
some of these are mini's that come with adapters.
Compact Flash (CF) Cards (up to 32GB), available at flash-memory-store $8-79 (64MB-32GB, 8/29/2009)
xD picture cards, available at flash-memory-store $23-27 (1GB-2GB, 8/29/2009)
MMC series cards, available from flash-memory-store, $6-13 (128MB-2GB, 8/29/2009)
WARNING: 4GB cards won't work in every product. even today, some inexpensive devices can only handle 1GB or 2GB SD cards and say so on the box.