# PMS and MKV Header Info

**URL:** <https://forums.plex.tv/t/pms-and-mkv-header-info/192300>\
**Category:** Feature Suggestions\
**Created:** [May 17, 2017, 3:13pm UTC](https://forums.plex.tv/t/pms-and-mkv-header-info/192300 "2017-05-17T15:13:11Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![MediaHorder](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/mediahorder/32/160753_2.png) [@MediaHorder](https://forums.plex.tv/u/MediaHorder)\
**Post date:** [May 18, 2017, 4:33pm UTC](https://forums.plex.tv/t/pms-and-mkv-header-info/192300/5 "2017-05-18T16:33:32Z")

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> @NewPlaza said:  
> What I find confusing is I also edit the headers and do not have this issue. In fact, EVERY mkv file goes through a series of little batch files to remove all description for tracks, disable subtitles(except non-english dialogue), check video and audio tack is set, check for any other tracks. It really only takes 1 second to complete each file even on large 30GB-40GB files.
> 
> To be honest, you may need to tell Plex to re-analyze the file or a [Plex Dance](https://forums.plex.tv/t/the-plex-dance/197064) altogether… Plex may not ever know the file has changed because of how small the header edit is.

Care to share the batch files and the method to implement?

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