I read the tutorial off PS2NFO and thought I got my backup to work online. I was able to burn the disc ID util .cue to a CDr and load it in my PS2 with SMD with no problem. I was also able to get the Disc ID for the game I wanted to backup. I did use the original game to get the Disc ID, the game was NFL Street 2(SLUS version). I will not have the game for long because I borrowed it from a friend. But I do have the ISO saved on my Hard Drive. My problem was converting the Disc ID and then burning it even though I thought everything went smoothly. I used Image Patcher 1.6 just like it told me to then Select image->scan file->verify version-> put in the original Disc ID-> then patched it, then i burnt it to a dvdr (the game worked but not online). What did I do wrong? When I loaded the backup to see the Disc ID it was different from the original game. Also when I downloaded the game to my HD it made two seperate files the ISO which I burned to a dvdr and a MDS file(which was pretty small). What is the MDS file?