I made a backup copy of Major League Baseball 2k5 for the PS2, because it was the only game I have that has an ELF file somewhere. To do this, I used ImgBurn. I used Apache to modify NETGUI.ELF and change it's TOC and replaced it with uLaunchELF v4.42a. I burned it to a DVD-R with 4x burning speed and it worked okay, and I went through the files in Explorer. Next, I put in the original MLB 2k5 game in my FAT Ps2 and went to online, then right before the settings window I used the swap card trick and swapped the game out, and put in my copied game with the modded NETGUI.ELF. I continued without saving, and instead of booting Ulaunch, it went to the ps2's "Please insert a playstation or playstation 2 disk" (RSOD). I don't know what I've done wrong, and I've followed countless tutorials and none of them work. I've tried burning and modifying different files, and I've wasted about 10 DVD-Rs on this. What exactly is wrong? Edit: FAT PS2, SPCH-50001.