Problem backing up DVD9 games

[tokaak]

Hi,
I am having problems backing up and playing the following games (so far):
Rock Band 2
Guitar Hero 5

game & game media: DVD+R DL (8x)
speed burned: 2.4x and 4x
program used to burn: ImgBurn
console version (and age if possible): SCPH-30004R (cannot remember).
other information: using the latest version of McBoot.

First of all, I have tried packing Band Hero. It worked on the console though it hanged after playing about 50% of the game. So, I applied the Toxic DL patch and used the lowest speed. Then, it has fully worked. So, I went on to Rock Band 2. I did the same procedure above. All I got was a blank screen after the McBoot logo. Then the console restarted. Then, it got stuck after the logo. So, I checked the ESR compatibility thread and applied the ESR gui patcher 0.24a. The game froze on the McBoot logo. Later, I have tried backing up GH5 and I have got a blank screen. I have tried loading both of the mentioned games in ESR and they both froze. Please help me back those games up. I have wasted many dvds trying to back the games. Thanks a lot, for your time.

Best Wishes.

[nemesis01]

What brand of media are you using?