How to convert .rargb files to .mp4 format.
It appears that converting Warez Movies directly to MPEG-4 Videos (.rargb to .mp4 conversion), per se, is not possible, but might not be necessary.
It is very likely that your RARGB video already is in MP4 format, and you just have known file extensions hidden. That can be changed in your folder settings in Windows.
The database currently does not contain any rargb software converter.