This question might be a little involved, but if anyone could help me, I'd be very greatful. I've downloaded PS2 games in two types of formats, one as a .rar'd ISO then split, the other as a split ISO. I'm having no problem with the split .rar, but when I join the split ISO using Mastersplitter, some problems are cropping up. I'm using swapmagic with a fliptop, btw. After I join the split ISO, I'm left with a 'file' type file. What I've done is rename it, adding .iso to the end, which turns it into an ISO file, but at this point I've failed to get a working backup. If I select the file with DVD Decrypter, it throws up an error message saying the "file is an invalid or unsupported file type". If I select the file with Alcohol 120%, a setting selection box called "Image File Format Setting" pops up. In it I can manually set the Track format; Block size; Image header size; Image trailer size; and a box for 'data was scrambled already', 'and data contains edc/ecc info sections'. Its always possible that these particular files are corrupt, but I've have 5 ISO's with the same problem. So can someone tell me what they do to get the PS2 backups that started out as a split ISO to work? Thanks.