Maybe this has been addressed before, but since searching on the forum doesn't work so well, I can't find a mention of it.
I used Krayzie's to mod my Xbox, and at the same time installed a new HD. I then used dvd2xbox to transfer all my games to the new HD. Everything works fine, except for my savegames. For example, with Halo 2, if I start a campaign, get past a checkpoint, save & quit, and go to the Halo 2 main menu, then select Campaign, my campaign shows up and I can resume from my save point... BUT, if I then quit the game (turn off the Xbox) and turn it back on, it doesn't show my saved campaign at all... any ideas?
EDIT: I've confirmed the issue with Halo and Halo 2, however, Burnout 3: Takedown is able to successfully save it's game. I'll update this as I test other games.