RMI

RIFF-based MIDI
Developer:	Microsoft
Header:	RIFF
Content:	Notational
Instruments:	Internal
Target Output
Released:	1991-??-??
First Game:	?
Extensions	*.rmi *.rmid

The RIFF-based MIDI file format was created by Microsoft Corporation in 1991. The file is basically a MIDI file which can also include DLS sound bank, thus increasing the fidelity of a song.

Some audio hardware can play RMI files with sound banks natively, see DLS.

Players

(Category)

Full DLS support

• Awave Studio - Windows
• ModPlug Tracker - Windows
• Nullsoft MIDI Player - Winamp

Without DLS support

• MIDI (XMPlay) - XMPlay
• MIDI Decoder - foobar2000
• System Shock Random Song Generator - Windows
• Windows Media Player - Windows

Not tested

• Digital Orchestrator Pro - Windows

Editors

(Category)

• Awave Studio - Windows
• MIDIPLEX - Windows

Converters

(Category)

RMI to ?

• MIDIPLEX - Windows 32 - MIDI

? to RMI

• MIDIPLEX - Windows 32 - MIDI

Games

(Category)

Released	Title	Sample
1995-08-24	Windows 95 (W32)
2001-04-13	Analog Devices Sound Demo (W32)

Technical

All RMI files use RIFF tree structure, and the identifier is RMID.

RIFF Tree Structure

File Root
│
└─ RIFF:RMID     - RIFF MIDI header
   ├─ data       - MIDI data chunk
   │
   └─ RIFF:DLS   - RIFF DLS header (optional)
      └─ ...     - DLS chunks

Links

• en.wikipedia.org/wiki/MIDI#Standard_MIDI_files - Wikipedia.
• digitalpreservation.gov/formats/fdd/fdd000120.shtml - RIFF-based MIDI File Format.
• fmjsoft.com/fmt/rmi.htm - .RMI - RIFF-MIDI files.