[kh99]

Hmm, well it looks to me like the files start with 3 extra bytes, EF BB BF. When I edit the image attachment with a hex editor and delete those 3 bytes, the image works. The zip file still says it's corrupted, though. Googling EF BB BF, I find that those are bytes that are supposed to identify a file as UTF-8 encoded, but I don't know where they are coming from. Maybe someone else will know, but my next question would be, are those bytes there in the disk files? Could they have gotten corrupted in the transfer? I don't know if you have any way to check the files on the server, or to download one to your PC via another method (like ftp) and see if they look ok.