Dragon Age 2 damaged save file

Referring to this: http://www.gamefaqs.com/boards/988967-dragon-age-ii/61569307?page=0 <-- that's what is happening to me, I'm preparing a perfect save file for Inquisition. I'm also playing DA2 on PS3.

I finished the campaign of Dragon Age 2, decided to start the DLC Mark of The Assassin and Legacy. I completed Mark of The Assassin with Hawke, Anders, Varric and Tallis. I got mid-way through Legacy, I went to sleep last night and saved it at Corypheus's Prison - Riannon's Floor, just before the battle with the Grey Wardens there. I was using Hawke, Anders, Varric and Carver for Legacy. I now can't access any of those auto saves or normal save file because apparently the files are damaged. I have played this game and the DLC hundreds of times and have never had an issue with save file corruption... I really don't want to have to do this over again.

Is there ANY solution to this? Please help me sort this out. If there is a way I can avoid it too, I'll re-do the game again as long as it's assured that it won't be corrupted.