: To use these subtitles in an MP4, they must be hardcoded (burned directly into the video frames) using tools like HandBrake .
If you are looking for a guide on how to submit files for 3D printing at PSU, the university's Maker Commons provides a specific workflow for their Prusa MK4S printers. Psub.mp4
: For toggleable subtitles in MP4, you must use text-based formats like SRT or WebVTT . Subtitles - HandBrake Documentation : To use these subtitles in an MP4,
: The build volume is limited to 9.8″ L x 8.2″ W x 8.6″ H (250mm x 210mm x 220mm). Psub.mp4
If "Psub" refers to "Picture Subtitles" or "PGS Subtitles" in the context of an MP4 file, there are specific technical limitations for this container: