Mark II Soundsystem is the name of the format. If you scroll down to the Music section of the link you posted above, you can click on the format to see the other tunes in the database in the same format.
http://janeway.exotica.org.uk/release.php?id=31368
I'm not familiar with the format but it looks like it wasn't widely used. A quick google search found this;
http://www.pouet.net/prod.php?which=34768
As for ripping the tune, you'd need to find a music ripper tool that deals with the Mark II format. As it doesn't seem that widely used, it's unlikely.