An improved version of the MPC Level 1 Specification for Multimedia Personal Computers. Minimum requirements are a 25 Mhz 486SX with 4 MB of RAM and a 160 MB hard disk drive. The CD-ROM drive must support a sustained data transfer rate of 300 KB/s using at most 60% of CPU bandwidth on 16 KB minimum block read size. Its average seek time must be 400 milliseconds maximum. Capability Mode 1, Mode 2 form 1, Mode 2 form 2, Multisession. It must be CD-ROM XA-ready. The computer must have 16-bit digital sound, an 8-note synthesizer, and MIDI playback. A sample rate of 44.1 kHz must be available on stereo channels with more than 15% of CPU bandwidth. A video display with a resolution of 640 x 480 in 65,536 colours, and MIDI, I/O, and joystick ports must be provided.