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Compact flash is a pain in the neck.

• The fact that some cards support DMA and others don't is really aggravating.
• Write limitations are aggravating as well. Even with jffs2 and yaffs, I'm nervous a database like sqlite or mysql would burn through a flash drive in no time at all.

Some disks have built-in wear leveling. Interesting - the Emphase disk-on-modules have up to 4,000,000 writes. How many writes does a database make?

Related Links:

http://www.filipdewaard.com/php/SQLite-in-memory-databases/ http://www.sqlite.org/cvstrac/wiki?p=InMemoryDatabase