Convert REP to MP4

Converting one of the many existing REP file types directly to MPEG-4 Video format (.rep to .mp4 conversion) will, most likely, not be possible using common video conversion utilities. These programs, typically, are not capable of converting game replays, or game session recordings to multimedia formats, such as MP4.

Unless the particular game comes equipped with a default function allowing players to export their sessions directly to MP4 format, you might have to use a screen recording utility, such as Camtasia or Fraps, to record your game session loaded from the REP file.