Mp3HD
| Filename extension |
.mp3 |
|---|---|
| Developed by | Technicolor |
| Initial release | 2009 |
| Type of format | Audio compression format, audio file format |
| Extended from | MP3, MPEG-1 Audio Layer III |
| Website | http://www.all4mp3.com/ |
MPEG-1 Audio Layer III HD (more commonly known by its abbreviation mp3HD) was an audio compression codec developed by Technicolor, formerly known as Thomson.
It featured lossless compression of audio data, and was usually backwards compatible with the MP3 format by storing two data streams in one file.