It's probably a typo or a scam/old download. Look for MP4 , MKV , or M4V (though M4V often has DRM too). If it's truly an .m4p, delete it and find a standard video format.

Assuming you mean the video content (likely an MP4/MKV rip labeled as "M4P" by mistake):

It looks like you're asking for a review of in M4P format (which is an old, protected Apple audio file format, likely a typo or confusion with M4V for video or MP4 ).