Hi i play on the ps3 and my saves has overwritten my other save it dose this a lot for me and its not the auto save that are getting overwritten its my manul saves of other characters so i can only have 1 character at a time some times i can have 2 but it seems to do this when i have high lvl one then start a new one i dont mind it but if i have a relly good player i just hate to see it be overwritten

On the consoles, and for the PC for that matter, use this method of naming characters to keep your saves straight, see post 2

http://www.gamesas.com/topic/1414861-save-profiles/

I had a problem similar to yours and what I did was just turn off the auto save feature completely so my saves don't get overwritten. Also I always keep 2 hard saves and load a useless save before making a new character.

I find it helps if you save when you're done playing with one character, and make the little picture in the corner face your character so you can easily identify which one it is.

I also do that. Helps a lot.