How to convert files to MP4 on a VLC media player and make your videos accessible on all of your devices

You can convert files to the MP4 format on the VLC media player, making them more accessible across your devices.
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How do I play . mp4 files on a client Vista computer?

I made several videos for a client's YouTube channel. He'd like to play them in a loop on the conference room's Vista computer. Since Windows Media Player doesn't recognize the format which format do ...