Background noise in music

[CD27]

Hey everyone! I'm trying to remove background noise in a music file. The problem is the noise is mostly if not all where the music is playing. I've tried all possible solutions, including noise capture, but it's difficult. Any ideas?

The music I'm using is below if neccessary 

[SteveG_AudioMasters_]

Basically you can't do this, I'm afraid - it's not constant background noise, so no NR process will get rid of it. Which is of course why none of the versions of it available on YouTube sound any different...

And also, of course, despite there being about 20+ minutes of credits, none of them mention whoever it was who created it, as far as I can tell. For all I know, it might just be an underscore of the main theme - that wouldn't exactly be unknown. But if it is, you'll have a lot of trouble getting hold of a 'clean' version of it. Initially, try asking the game creators whether they're prepared to identify it, perhaps?