Because of copyright and more issues, Windows only comes with so many "decoders."
Try VLC PLAYER and see if the file plays.
About YouTube and Facebook. Try the CHROME browser.
I only receive the audio portions when I play video files. The video is blank/black. This is happening with mpg., avchd and to the videos posted to websites; youtube, facebook etc. The only video files I can play are windows media files. Windows media PLAYER won't play the other video files? I have the latest updates for my video card and adobe flash player. Any info would be much appreciated, thanks. David
Windows 7 64 bit, i7 980x @333 6 core processor, 12 GB ram DDR 1600, Radeon 5850 GPU, OCZ Vertex 3 120GB SSD