If the user requires assistance converting a legally owned legacy M4P file, refer them to Apple Support or authorized media conversion tools that respect DRM licensing. End of Report
| Feature | Specification | | :--- | :--- | | | MPEG-4 Part 14 (MP4) | | Codec | Typically H.264 (video), AAC (audio) | | Key Distinction | Protected by Apple FairPlay DRM | | Source | Purchased/downloaded from iTunes Store (historical) | | Playback Restriction | Authorized Apple devices or iTunes with account authentication | outlander s01e08 m4p