RiVA MPEG player 0.53 is the fastest MPEG player available on the classic 68k Amiga platform. It is based on the work of Stephen Fellner and László Török, extended by a lot of additional improvements in terms of runtime performance and audio/visual quality. RiVA served as the prominent testcase in the development cycle of the Apollo Core AMMX instruction set extension. The full source code is included, covered by the GNU general public license. The AGA and CGX renderers are available with dual licensing (GPL or MIT)