The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (). A separate hint track is used to include streaming information in the file. Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players. MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. Like most modern container formats, it allows streaming over the Internet. Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. International Organization for Standardization

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