I just finished softmodding my xbox and I ran across a slight problem.
I ftped a game over from my xbox hd, made an xISO file using Qwix, and burned it on a Maxell DVD-RW. I got a v1 xbox with a Thompson drive. It didn't read the disk. I thought it was the media, but when I put in a burned movie on the same type of disk (Maxell DVD-RW), my box read it without a problem. I noticed that when I was burning the game onto the dvd it burned at 2.4x. I tried with different burning programs and I get the same thing. I even have 2 different burners I was using. Is there anyway to force a burn at 1x? I looked into omnipatcher, but I don't think it's the program I need.
Your problem is you are bruning too slow, not too fast. Burn at 4x. Then you should be OK. Also, you're using -RW media. Consolse drives don't like this too much, they prefer DVD+/-r media. Also, Maxwell isn't really top notch media. Try Verbatim or Sony.
to solve the problem:
get rid of the RW discs and get some good quality 8X DVD-R the Xbox will not work well with the RW discs for games
Burn the 8X disc at 4X with DVD Decrypter or IMGburn
movies and games are two different things.
i have had movies work on many discs that would not work for games.