Remember the video you recorded is just data and when it is downloaded into your computer it is saved as a file the format of that file is your first clue to what you need. the last three or four leters after the dot[.] asdfghjk.xxxx is the saved format windows media player used things called codex's {whatever that means} and will play some formats the trick is to change the format to the software you own or get software that "knows" your format. look on frostwire.com for a search goodluk and Godbless RC

I have met the same trouble ,but I then downloaded some software to change the format,you can try it,I choose the xilisoft,you also can try others.