COMPUTER SOFTWARE THAT EMULATES THE HARDWARE FUNCTIONS OF DIGITAL VIDEO DISC DECODER INTERFACE COMPONENTS FOR USE IN MULTIMEDIA APPLICATIONS IN PERSONAL COMPUTERS TO DECODE, ADJUST, PLAY, PERFORM AND CONTROL AUDIO AND VIDEO INFORMATION INCLUDING SPECIAL EFFECTS, IN MOTION PICTURE EXPERT GROUP (MPEG) FORMATS STORED ON DIGITAL VIDEO DISCS, INTERACTIVE DIGITAL VIDEO DISCS, VIDEO COMPACT DISCS, AND OTHER PERSONAL COMPUTER STORAGE MEDIA