I have to play MPEG Video version 1 or 2 with MP3 audio file (e.g. version 1 or 2) on MPC-HC for Windows. The filename extension does not exist on an audio or video filename directory. Instead, a .flv is a Flash Video file that does not have a MPEG Video and a .mkv file can be also encoded into the MPEG Video with a MP3 audio file. Similar programs like to do?