- Extension
- .m4p
- .opml
- Format
- Binary
- Text
- Category
- Audio
- Document
- Developer
- Apple
- Dave Winer
- Description
- M4P is an audio file format used by the iTunes Music Store. It is a protected file format that uses Digital Rights Management (DRM) encryption to protect the audio from being illegally copied. It is one of the most popular audio formats on the iTunes Music Store and can be used to play music on Apple devices such as iPhones, iPads, and Mac computers.
- OPML (Outline Processor Markup Language) is an XML-based format used to exchange outline-structured information. It is most commonly used to share lists of web feed subscriptions (such as RSS or Atom feeds) between feed readers and aggregators.
- MIME Type
- audio/x-m4a
- text/x-opml
