My new phone

So I have my phone pretty much customised now. I found some midi software to edit my ring tones, making them short enough (20s is too long) and the right type (single channel). Pretty much any midi I find, I can get onto my phone. I also found some nice pictures for my wallpapers. I got taking photos and videos down pat, but can’t find a windows mp4 video viewer to check out my videos. The ones I tried can’t read these files, so until I find one that can, have no way to view the videos except on the phone.