.mp4 file extension

.mp4: MPEG Audio Layer 4 file. A .mp4 file is a container, meaning that it can contain any number of audio, subtitle or video streams.
Contrary to the MPEG 4 specification, Apple use the .m4a file extension but the two file formats are otherwise identical.

Download Filestar to convert .mp4 files. Filestar is an universal file converter for Windows that supports over 600 different file types.

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