# MP4 cannot be opened for writing

**URL:** https://community.mp3tag.de/t/mp4-cannot-be-opened-for-writing/19027
**Category:** Support
**Created:** [June 7, 2017, 5:27am UTC](https://community.mp3tag.de/t/mp4-cannot-be-opened-for-writing/19027 "2017-06-07T05:27:36Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![lindahatzidis](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/278dde/32.png) [@lindahatzidis](https://community.mp3tag.de/u/lindahatzidis)
#### Post date: [June 7, 2017, 5:27am UTC](https://community.mp3tag.de/t/mp4-cannot-be-opened-for-writing/19027/1 "2017-06-07T05:27:36Z")

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I downloaded a movie from Microsoft Store.  
They allow you to download a full copy as well as access a digital online copy.  
I have been using MP3TAG and have had no problem adding covers to my own dvds.  
When I try to add a cover to this dvd it comes up with Error message: cannot be opened for writing.  
I cant add a cover no matter what I do. ☹

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### Author: ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [June 7, 2017, 5:35am UTC](https://community.mp3tag.de/t/mp4-cannot-be-opened-for-writing/19027/2 "2017-06-07T05:35:34Z")

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> [@LindaH](#):
>
> ...I cant add a cover no matter what I do. ☹

see e.g. here: [/t/14151/1](https://community.mp3tag.de/t/14151/1)  
sometimes MP4s have to get re-encoded to work.

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### Author: ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:26pm UTC](https://community.mp3tag.de/t/mp4-cannot-be-opened-for-writing/19027/3 "2026-02-09T12:26:50Z")

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