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How to Play iTunes M4P Files without iTunes | NoteBurner
https://noteburner.com/apple-music-tips/play-m4p-file-without-itunes.html#:~:text=M4P%20-%20MPEG%204%20protected%20audio%2C%20is%20a,2009%2C%20Apple%20removes%20the%20limitations%20of%20iTunes%20songs.
Converting MPEG-4 Audio File (Protected) - Apple
https://discussions.apple.com/thread/804739
Question: Q: Converting MPEG-4 Audio File (Protected) to MP3 New user purchasing tunes for my Lyrica MP3 player using daughters setup for IPod. Tunes downloaded in MPEG-4 audio file format and are 'protected'.
MPEG-4 - Wikipedia
https://en.wikipedia.org/wiki/MPEG-4
4 Ways to Convert M4P to MP3 (Removing iTunes DRM)
https://www.fonecope.com/convert-m4p-to-mp3.html
(MPEG 4 Protected).M4P is a new file extension primarily related to AAC (Advanced Audio Coding) files that are protected by Apple Inc. This kind of file can only be played on Apple made players because of DRM. It means that you cannot open it on other versions of PC without any authorized software. It requires you to convert DRM protected m4p …
How to Play iTunes M4P Files without iTunes | NoteBurner
https://noteburner.com/apple-music-tips/play-m4p-file-without-itunes.html
M4P - MPEG 4 protected audio, is a protected AAC file extension, generally used by Apple iTunes purchased songs with digital rights management, while M4A is an audio extension for unprotected AAC file. At beginning, M4P format is applied to the iTunes purchased songs in 2003. Later, in 2009, Apple removes the limitations of iTunes songs.
Step-by-Step Guide: How to Unprotect iTunes Songs
https://www.tunefab.com/apple-music/unprotect-itunes-songs.html
Songs you purchased from iTunes Store were protected by Apple's FairPlay Digital Rights Management before 2009. Those restrictive MPEG-4 audio files can't be played on an unauthorized computer. At the Macworld Expo of 2009, Apple finally decided to drop DRM from the iTunes music library.
What Is M4A? How to Open It & How to Convert It?
https://www.minitool.com/lib/m4a.html
M4A stands for MPEG 4 audio. If you are interested in M4A, you can continue to read this post from MiniTool. Both M4A and MP3 file extensions are used for pure audio files. Audio-only MPEG 4 container files usually have an M4A file extension. M4A files are not protected. Protected files usually have the M4P file extension.
Convert M4P to MP3, M4A, or AAC files without DRM
https://www.m4p-converter.com/convert-m4p-to-mp3-m4a.html
M4P - MPEG 4 protected audio format encoded with advanced audio codec (AAC), generally used by Apple iTunes purchased songs with DRM (digital rights management), which means you are limited to play the songs on your own device. while M4A is an audio extension for unprotected AAC file. M4P and M4A audio files quality are better and also usually sound better than MP3 files.
3 Ways to Convert Protected Audio Into a Plain MP3 - …
https://www.wikihow.com/Convert-Protected-Audio-Into-a-Plain-MP3
How to Convert Protected iTunes AAC File to MP3 …
https://www.tunefab.com/tutorials/convert-protected-aac-to-mp3.html
"Protected" means these AAC audio files are encrypted by Apple's FairPlay. FairPlay is a digital right management (DRM) technology developed and used by Apple to prevents content from being copied, shared or played on non-authorized devices. This makes senses why you can't play protected AAC audio files on Android phones, Zune, Sonos hi-fi system and other …
MPEG Audio FAQ: MPEG-4
https://sound.media.mit.edu/resources/mpeg4/audio/faq/mpeg4.html
MPEG-4 Version 2 contains the Error Protection (EP) Tool which can be used by all MPEG-4 audio coding algorithms and is able to adapt to a wide range of channel error conditions. The main features of the EP tool are as follows:
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