You can back up any saves to a flash drive easily.
As far as saves going missing on a new game, on PS3, I have not experienced the issue for any of my characters.
Some of them I created on my Prisoner save, and some were completely new.
I'm pretty sure they were autosaves bro, sorry for the luck.
I also heard there's this bug on PS3 where, like, Kim Jong Il pops up on occasion at the load screen and craps out a Dwemer.
Pure conjecture, but it totally happened to me.
I think
