I have had only the briefest of flirtations with flash drives, and that more than a month ago. My impulse was to transfer files (on a SanDisk Cruzer Titanium 1GB) between my iMacs (500 CRTs) with Panther and Tiger to my client's machines (a motley lot under Windows XP). The U3 technology built into the drive was irrelevant for Macs. The transfers worked when XP could be induced to take its thumb from its mouth and simulate intelligence.
My brief research indicated that FAT16 formatting was to be preferred to FAT32 for small files, which most of mine were (MS Office 2004). No difficulties. However, I reverted to email for transfer, and haven't pushed the flash drive experiments any further. My reading also made it apparent that the variety of memory and controller chips in flash drives makes every brand or model of drive a Thing Unto Itself, and the results with any drive unpredictable until you have mastered it. At the moment, that's as encouraging as I can be.
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My brief research indicated that FAT16 formatting was to be preferred to FAT32 for small files, which most of mine were (MS Office 2004). No difficulties. However, I reverted to email for transfer, and haven't pushed the flash drive experiments any further. My reading also made it apparent that the variety of memory and controller chips in flash drives makes every brand or model of drive a Thing Unto Itself, and the results with any drive unpredictable until you have mastered it. At the moment, that's as encouraging as I can be.
de