# Playing video backwards (ogg file does not load)

**URL:** <https://discourse.processing.org/t/playing-video-backwards-ogg-file-does-not-load/5194>\
**Category:** Libraries\
**Created:** [November 4, 2018, 7:14pm UTC](https://discourse.processing.org/t/playing-video-backwards-ogg-file-does-not-load/5194 "2018-11-04T19:14:57Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![eda](https://avatars.discourse-cdn.com/v4/letter/e/f9ae1b/32.png) [@eda](https://discourse.processing.org/u/eda)\
**Post date:** [November 4, 2018, 7:14pm UTC](https://discourse.processing.org/t/playing-video-backwards-ogg-file-does-not-load/5194/1 "2018-11-04T19:14:57Z")

</div>

Hello, I am trying to play a video backwards and forwards. As advised on the video library - speed ([https://processing.org/reference/libraries/video/Movie\_speed\_.html](https://processing.org/reference/libraries/video/Movie_speed_.html)), I managed to convert the video from a mp4 to ogg file. Now when I try to upload the new file to processing, I am getting this alert " Could not load movie file name.ogg."

I don’t know what the problem is as this is the suggested file format. Does anyone have any suggestions ?

Thank you