VGChartz's Official My Little Pony: Friendship is Magic thread!

[Soleron]

Mr Khan said:
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They have Windows binaries.

http://ffmpeg.zeranoe.com/builds/

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It's probably not the right kind of MP4. In which case you'd need to transcode it to MPEG-2 or h.264. Or, yeah, laptop, because 1 transcode could take hours or reduce quality.