Ive found an archive a while ago with files that have an extension *.IMS and *.SOP. After some google searching and stuff i found out that they are OPL music files. As ive read its from Korean DemoScene and I can play it with my XM Player with a plug in i found.

What im wondering is, what kind of file is .SOP? Is there a DOS player for it so i can play it on real OPL hardware?
Some of these are quite amazing, here are some examples:

https://dl.dropbox.com/u/54462712/YOLO/FM.7z

Ive tried to find more, but with out luck. The website was apparently: http://gamebgm.com/index.html

http://web.archive.org/web/20050410141121/htt … .com/index.html