First copy the songs into your "Shared Folder" and convert them to MP3 files. They are ten times smaller than audio files and takes a lot less time to download them. (Use Nero).
It is better to have them as individual songs rather than one file of the whole CD. That way people can download only the songs they like, rather than the whole CD (which takes long time) in order to get one or two sonds.
Besides, if you make one file containing the whole CD, you are not gonna be able to list all the songs in the title. In other words, you gonna name the file: .....say...."Rolling Stones". Well, what's in it?