Programs that can open .rmi files

Unsure of what programs can open up a .rmi file? Well, here is a list of programs that can open up RMI midi files. These have all mostly been tested and proven to work:

Windows Media Player
On older machines such as Windows 95, this works due to being designed to open the RMI midi format.

But, .rmi files can open in all versions of Windows Media Player; this even includes Windows Media Player 12, not just the classic versions.

VLC Media Player
It opens up just like a .mid file would; it uses Fluidsynth, which uses Soundfonts (.sf2). This means anyone with later builds of Windows may be able to listen to OPL3 once again if they have downloaded an OPL3 soundfont.

However, without a soundfont, both midi and rmi will not work and VLC will give an error message, giving instructions on how to set a soundfont up; the soundfont must be loaded using the VLC Audio Codec settings.

Plus, VLC can be used to convert both .mid and .rmi into .mp3 files using a soundfont, resulting in high quality recordings of midi files being played using different soundfonts!

How to Load a midi file into VLC (Requires a Soundfont (.Sf2) file)
Here is a step by step guide on how to load a .mid or .rmi file into VLC:

1: Download a Soundfont; e.g: Eawpats (The Gravis Ultrasound Soundfont). You can get Eawpats from here: https://www.dropbox.com/s/4hftbg8e0erf4fj/eawpats.zip?dl=0&file_subpath=%2Feawpats.sf2

Alternatively, you can download soundfonts from Musical Artifacts (musical-artifacts.com).

2: Open VLC Media Player, and then click on Tools, and then on Preferences

3: Click on the Audio tab (it's the traffic cone with headphones on).

4: At the bottom of the audio tab should be an option to Show Settings. You'll want to change it to All.

5: Find Input / Codecs. Make sure that the arrow next to it is pointing down to reveal all options under the tab. If you are struggling to find this option, type "Midi" in the Search Box.

6: Find Audio Codecs, and click on the arrow next to the option to reveal a list of Audio Codec options. If you are struggling to find this option, type "Midi" in the Search Box.

7: Click on Fluidsynth, and turn off both Reverb and Chorus (unless you want them on)

8: Click Browse. Find where you saved the soundfont (.sf2), and click on the .sf2 file to load the soundfont.

9: Click Save

10: Load a .mid or .rmi file into VLC by dragging and dropping the midi or rmi file on to the VLC Window. Now the midi file will play using the soundfont you downloaded.

Note: The soundfont will stay loaded in VLC, so if you only prefer using one soundfont, you don't have to repeat the instructions, unless you want to load a different soundfont.

Using VLC to Record Midis using Soundfonts (Sf2)
To convert a midi file using a soundfont, first, make sure you have loaded a soundfont first, and then click on Media, then Convert / Save.

Next, drag and drop the midi file(s) into the box in the Open Media window, and then click on the Convert / Save Button.

Depending on the number of midi files dragged into the conversion box will change the behaviour of how VLC will save the converted files: Next, click on the Profile box and either select Audio - MP3 to save the converted midi(s) as an .mp3, or Audio CD to save the converted midi as a .wav.
 * If you are converting a single midi file, then VLC will ask you where to save the converted file.
 * If you are converting multiple midi files, then VLC will automatically save the converted files in the same location as the original .mid files; this does not overwrite the original midi files, so don't worry.

Finally, click Save, and all the converted midi files will begin to appear. However, if you're only converting a single midi file, you will have to choose the location on where to save the file first, before you can click the Save button.

Have fun listening to many different midi files, using many different soundfonts!

Microsoft Powerpoint
Just like .mid files, .rmi can also be used in Powerpoint Presentations. Like most audio files, make sure to import it in using Insert; do not drag and drop, or it will just turn into a file icon.

Anvil Studio
While Anvil Studio supports .rmi files, it can't see .rmi files unless the file type box is set to see "All files". Once it is set to "All Files", it will then see the .rmi files.

Opening the RMI will work just like how it opens up .mid files. Anvil Studio will even convert .rmi files into .mid files just by using "Save As", which is useful for loading .rmi files into programs that don't support .rmi.

Cyberlink PowerDVD
This loads up a .rmi file just as well as Windows Media Player can; drag and drop the .rmi file on to it, and the midi file will load.

However, this has only been tested on Version 10 and hasn't been tested on previous or future versions.