Multimedia files in MPEG-4 format (.mp4) can be converted to all kinds of other multimedia files, including to one of the previously used MPEG variants, for example .mpe files. You may do this conversion with video editing tools like Adobe Premiere Pro, or some dedicated conversion tools.
Convert MPEG-4 video file format to MPEG movie (Motion Pictures Experts Group).
We have found 2 software records in our database eligible for .mp4 to .mpe file format conversion.
Microsoft Windows software - convert mp4 to mpe on Windows
A timeline-based video editing software from Adobe
Convert from mp4 file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned mp4 to mpe. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A Software for MP4/3GP file conversions