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System Messages
System messages apply to the complete system rather than specific channels and
do not contain any channel numbers.
There are three types of system messages: common messages, real-time
messages, and exclusive messages. In the following, we will see how these
messages are used.

Common Messages
These messages are common to the complete system. These messages provide for
functions such as select a song, setting the song position pointer with number of
beats, and sending a tune request to an analog synthesizer.

System Real Time
Messages These messages are used for setting the system's real-time parameters.
These parameters include the timing clock, starting and stopping the sequencer,
resuming the sequencer from a stopped position, and resetting the system.

System Exclusive messages
These messages contain manufacturer-specific data such as identification, serial
number, model number, and other information. Here, a standard file format is
generated which can be moved across platforms and applications

JPEG Motion Image:
JPEG Motion image will be embedded in A VI RIFF file format.
There are two standards available:
(i) MPEG ~ In this, patent and copyright issues are there.
(ii) MPEG 2 ~ It provide better resolution and picture quality.