Read Only Thumb Drive

I'm having a problem with "permissions" for a 1G Thumb Drive. Basically, I am being offered "read only" for this thumb drive. Using Utility, I can verify the drive, but the repair permissions options is grayed out. I cannot erase and reformat either.
Using Get Info, I can see that the thumb drive is FAT16 and that the drive has "read only" permissions. I've ticked the "shared folder" box - still not able to write to the drive. There is no "ignore permissions" option offered. I have other drives of the same type that work with Leopard - just this particular one is for some reason locked into "read only".
I'm curious as to why this one, which is new and has never been used, will not work with Leopard (It works on my Panther notebook and with my Windows PC). I'm also curious as to how to change or repair permissions for this problem.
Thanks for any advice.
Jill

It may be because a Leopard Mac can't write to a FAT16 file system. Reformat to FAT32 on your Windows box and see if that fixes the problem. Repair permissions is only available for drives that contain a Mac OS, since it only repairs the components of an Apple OS install.
Francine
Francine
Schwieder

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