M4P file format
| Extension | .m4p |
| Category | audio |
| Description | The M4P format is an encrypted version of the MPEG-4 Part 14 multimedia container format used to store digital audio content that has been protected by Apple's FairPlay digital rights management (DRM) system. This format was developed by Apple to prevent unauthorized copying and distribution of digital music files purchased from the iTunes Store. |
| Technical details | The M4P format utilizes Advanced Audio Coding (AAC) as its audio codec and is compatible with a variety of bitrates and sample rates. M4P files are protected by the FairPlay DRM system, which utilizes a combination of encryption and authentication methods to ensure that the content can only be accessed on authorized devices. |