MPEG2Lib can decode MPEG2 encoded video sequences like the ones found on a DVD or the disk in a typical harddisk video recorder. The decoder is based on the GPL project DVD2AVI (arbor.ee.ntu.edu.tw/~jackei/dvd2avi/) and MPEG2Decode from MPEG

read/write IDE harddisk by MSC89C51 to feed MP3 decoder