I've noticed a couple of post about the Mac leaving hidden dot files (.xxx) on the player as a possible problem. I think this could be part of the problem with Mac vs c250 especially with v2. After plugging the USB to my iBook G4 a couple of months ago, I did fix this problem on a WinXP PC by blowing away all the files and folders and dropping the C200PA.BIN file on the root of the file system. But I could see the player as a drive letter. I cannot get that far this time. True, formatting the memory would wipe all the files and folders as well. I approached the problem more cautiously. Since the WinXP PC cannot see the player, I also tried to use the Mac iBook G4 to try and see the player with out success. With another email to email@example.com
and no response, I'm going to have to phone them to get anywhere.
Thankx for the two bits ... mark :-)