The music is all specially-written for the games. I agree that LDW might consider making a CD available, but they are set up for online distribution, not by CD or similar.

Most PCs can nowadays burn a CD so you could create one for yourself. The music is in the games' Sounds folders, with names like "song1.ogg", "song2.ogg", and so on.

You would possibly need to download software like WinAmp to convert the ogg files to a more common format like MP3 if you wanted to play the CD away from your computer. You might also have to download a codec or even a player like WinAmp if you wanted to play the CD on the computer without native ogg file support.