The Free On-line Dictionary of Computing (30 December 2018):

MPC Level 2 Specification

    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.

   (1997-01-19)