Destroyed half my movies

I tried using this app on about 20 movies now that the iTunes portion is no longer an additional in-app purchase, and for the ones it added an icon to, it worked fine. About half of them didnt get an icon added, just an error about it being unable to add to iTunes and it isnt my fault. That would be fine if thats all it did, but in addition to the error, it also corrupted the movies so that they wouldnt play anywhere - not in iTunes or even VLC. Thankfully I had backups, but I would not recommend using this program at all - copy the artwork over manually instead.

webdeck about MovieIcon - Adds cover art to your movie files