*EDIT* PROBLEM SOLVED Just tried a few more cIOS, the one that worked was cIOS249-IOS36-rev07. I had v3.3U installed and downgraded it to 3.2U using this tutorial (http://gbatemp.net/index.php?showtopic=119216) I proceeded with it up to the SoftChip step. Then I tried to play my backup of SW:TFU using the Gamma Loader, but it would give me a "324 Disk Read" error. I decided to try the SoftChip loader (which is using a IOS37 based cios, as on the tutorial), and it works fine with this game, so I think that the problem is not with the DVD I burned, but maybe with the cIOS. So I uninstalled the IOS249 that I had installed following the tuto, and installed Waninkoko's v07. It still doesn't work. Any ideas on what I should do to fix that error on the Gamma loader? And one more question: the softchip is version 59. If I want to install v66, what should I do? Just delete the old files and copy the new ones, or must I install something else?