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>>I *guess* "they" call it a "disk" because of how the data is stored on the device - like any other diskette (my 2GB unit uses FAT).
>>I wonder if a 128GB is supportd by FAT?
>
>
>Nope. Even FAT32 only goes to 4 gig.

Hi Mike, Looks like max file size is 4 gig, but max volume size is 32 gig.

http://support.microsoft.com/kb/184006

The problem I've had with thumb drives is I have somehow rendered 2 of them useless in the last year. The Sony one I can reformat and get it to work again, but the SanDisk one was totally dead. Until they are more reliable I hesitate to spend much money on one, or rely on a thumbdrive for anything but transient storage.