# \[Bug\]/\[Req\] mp4 extentions handling

**URL:** https://community.mp3tag.de/t/bug-req-mp4-extentions-handling/10618
**Category:** General Discussion
**Created:** [July 5, 2010, 4:30pm UTC](https://community.mp3tag.de/t/bug-req-mp4-extentions-handling/10618 "2010-07-05T16:30:57Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![racca](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/r/958977/32.png) [@racca](https://community.mp3tag.de/u/racca)
#### Post date: [July 5, 2010, 4:30pm UTC](https://community.mp3tag.de/t/bug-req-mp4-extentions-handling/10618/1 "2010-07-05T16:30:57Z")

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Mp3tag is handling mp4 files in a peculiar way. Since ".m4a" ".m4b" ".m4v" ".mp4" are all identical as far as the tag/meta is concerned. Why is it that ".m4v" etc cannot be read at all?

Regards.