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M3U - When you create a playlist in some media players, like Winamp, the playlist file contains the extension M3U. Clicking an M3U file will bring up all of the songs in the playlist in your default audio player.
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M4A - MPEG-4 Part 3 (formally ISO/IEC 14496-3) is, as the name suggests, the third part of the ISO/IEC MPEG-4 international standard. It specifies audio coding methods. The audio file format used by Apple in their popular iTunes Music Store often appears on your system with the ".M4A" filename extension. M4A can produce better audio quality than MP3 using less physical space for the files.
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M4P - M4P format is "protected AAC". It is a format of purchased music that can be listened to only through the iTunes softer or an iPod.
- MIDI (Musical Instrument Digital Interface) - A MIDI file doesn't contain actual audio data, but rather contains commands that let MIDI-capable synthesizers re-create a specific musical passage. more...
- miniDV - miniDV is the most popular digital camcorder format at the moment.
miniDV is a video cassette designed for use in miniDV digital camcorders. The picture quality of digital video (DV) recorded on a miniDV cassette is basically identical or better to the quality of DV recorded on a Hi8 or 8mm cassette by a Digital8 camcorder. miniDV can have up to 530 lines of video resolution for some camcorder models. However, miniDV tapes are smaller which allows for smaller camcorders. miniDV tapes are available in lengths of 30 and 60 minutes (plus, recording in LP mode lets you extend total recording time with a 60-minute tape to 90 minutes).
- miniDVD - miniDVD is a DVD video written onto a CD-R(W) instead of a DVD disc. miniDVD is also sometimes called cDVD. A miniDVD only fits about 15 minutes of DVD quality video on a 650MB CD-R(W).
Basically miniDVD is a regular CD that has the same structure as regular DVD-Video has. Most of the standalone DVD players can be fooled to think that the disc inserted is a regular DVD-Video disc and to play it. But, one DVD quality movie (about 4GB) ends up taking 6 or more CDs (about 700MB per CD), Therefor most of the people don't use miniDVDs, but use VCDs, SVCDs or their varieties.
- MOV - a file format for Quicktime movies and animations, developed by Apple Computer Co. more...
- MPEG - MPEG stands for M oving P icture E xperts G roup ¡ª a committee that sets international standards for the digital encoding of movies and sound. more...
- MPEG1 . This format is often used in digital cameras and camcorders to capture small, easily transferable video clips. It's also the compression format used to create Video CDs, and commonly used for posting clips on the Internet. The well-known MP3 audio format (see definition below) is part of the MPEG1 codec. MPEG-1 is the designation for a group of audio and video coding standards agreed upon by MPEG (Moving Pictures Experts Group). MPEG-1 video is used by the Video CD format. The output quality at usual VCD bitrates is roughly that of a VCR.MPEG-1 audio layer 3 is the full name for the popular audio format MP3.
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GLOSSARY
