NUV and mplayer

Reading PX-TV402U/MythTV files in Windows - Topic Powered by Groupee Community: "The PVR-250 and similar devices output an MPEG Transport Stream, which is also a container format like NUV. This is why you're able to run 'cat /dev/video0 >movie.mpg' and mplayer will happily play it. When MythTV records from a PVR-250, it puts the MPEG-TS into the NUV, creating a 'container-in-a-container' file. You can play these NUV files in MPlayer because MPlayer simply ignores the NUV data and extracts the MPEG-TS directly. This doesn't work with NUV files from the ConvertX because NUV is the only container format in use, so the NUV metadata is critical to playing the file, and MPlayer doesn't know how to read NUV files."