Auto Episode Renamer ?

Been downloading all the southpark episodes, want to rename from:
Ssouth.Park.S10E01.DVDRip.x264.mkv to South.Park.S01E01-Cartman Gets An Anal Probe
is there a way to automatically rename the entire series at once without having to do this manually, one by one.
Thanks.
Answer #1
http://www.filebot.net/
Great app, used it myself over 3000 times. It’s freeware
You can enter your own renaming patterns.
Answer #2
Very nice app, saved me a lot of time with proper naming. The exe does contain spyware, found the installer here without the embedded junk.
http://sourceforge.net/projects/filebot/files/filebot/
Thanks Again.
Answer #3
Been using the above software. But ‘the renamer’ is much better and easily configuratable + freeware. Filebot is good for details and sometimes subtitles.