toshiba media player truelink converted all my mp4 files to truelink instantly without my ok. anyway to undo??

[digger7495]

I have a number of historical military files in MP4 and when I went to view one the Toshiba system asked what I thought was 'did I want to view using Toshiba media player and I clicked on it. It converted that selection and every file in my folder. Is there anyway to convert back to MP4.

 

[Barty1884]

Has it truly "converted" the files? That likely would've taken a long time.

It's likely simply changed the default media player (and the icons as a result).