ANYTHING is possible.
http://newenglandgamer.com/?p=3305
Read number 1
Number one was a console game ages ago, I doubt the beta testers have to worry about something like that happening. I have already backed everything up anyway, and cleared everything except Skyrim so I could actually finally install the game to the hard drive. It is much quieter now while playing. I have a reserve flash drive for hopeful beta testing and a memory card. I will probably look at the other save options if I get to test the beta.