no problem, I will find you some rmvb versions then ^^
well about those files, you need to use the latest K-Lite which can be downloaded from here
http://www.free-codecs.com/download/...Codec_Pack.htm
or you can use CCP codec pack or the simple VLC player ;)
those files work on ether of those 3 , I highly recommend that you try those mkv using one of those 3 codecs n players because , they are better than .rmvb and .mp4 in every way , xD