Glossary

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M

M4a

A file format generally used with music files that are higher in quality for about the same file size. M4a files are the most common file extension for audio imported off CDs using iTunes. This audio container was first used by Apple to differentiate MPEG-4 audio files from the popular MP4 video file container.

Mozilla Firefox

Mozilla Firefox is a free open-source browser

Mp3 (file)

An MP3 file is an audio file that uses a compression algorithm to reduce the overall file size