The “RMID” format consists of a standard MIDI file enclosed in a RIFF chunk. Enclosing the MIDI file in a “RIFF” chunk allows the file to be consistently identified; for example, an “INFO” list can be included in the file.
The “RMID” form is defined as follows, using the standard RIFF form definition:
<RMID-form>
–RIFF ('RMID'// RIFF header
data( <MIDI-data> )) // Standard MIDI File
// data
<MIDI-data> is equivalent to a Standard MIDI File.