Finally got round to installing WWE13 on my PS3 and have finally got it working by bypassing the 'data corruption error' and also fixed the sound since people could not get thE sound working either...
Guide Below with Corrupted data fix and sound fix
Remember that if your doing this on the US version your game ID will begin with BLUS and not BLES.
**PLEASE ALSO NOTE THAT THIS WILL ONLY WORK ON A PS3 RUNNING CFW, IT WILL NOT WORK ON A RETAIL PS3***
1. Install WWE13 with Multiman as you would normally.
2. Once installed press the SQUARE button on the PS3, this will bring up a series of options, to the bottom of the left hand side of the screen select ‘INTERNAL’ and ‘BDMIRROR’ this will fix the sound issue.
3. Press start and launch the game.
4. Once on the XMB go to the /app_home/PS3_GAME/ and launch WWE13
5. Let the Game Data install, once installed and it is confirmed working exit the game and launch multiman again
6. Once back into Multiman browse to File Manager/ mmOS and select it
7. Once your in the mmOS click on PS3 Root and then go to dev_hdd0\game\BLES01699\\USRDIR\
8. You will see the PAC folder and another small file called F.dat you need to delete F.dat as this is the file that is causing the data corruption, for some reason THQ thought to put in another file that acts like an arc file for the installed data, so anything that you mod will not work and will result in the corrupted data error.
9. Once deleted launch the game again to confirm that it is working, once working start modding.
POINTS TO NOTE
1. All PS3 CH pacs work fine
2. I can't get ANY arenas to load when I have modded them no matter what I try....So I am still working on that and hope to have a solution soon.