Can you manually backup your files from the ps3..try this and see if it works.
You can locate your files in your ps3 in the PICTURE / VIDEOS / GAMES section. You do this by selecting the files you want backed up, then press the triangle button on your ps3 controller. That way you have bypassed ps3 8001002A issues and might have saved your files.
Not sure if this work for you but might be worth a try.
Sounds good as i was going to mention about the corrupt file/s that could be on the hdd, but i wasn't sure on that part and never posted that, but didn't know that restoring the file system would help..nice to know that part now..good luck and hope you can save all that you wanted too.