Converting .m2p videos to .mp4 format.
Converting MPEG-2 Program Stream Files directly to MPEG-4 Videos (.m2p to .mp4 conversion) should be possible, even though your options are limited.
Use a video editing software or (online) conversion tool, such as Adobe Premiere Pro, which should allow users to import M2P videos and export them in MP4 format.
A timeline-based video editing software from Adobe
A multimedia converting tool for Windows
Video capturing software from Nero Suite