My one, and only, experience with copywrite is simple. If the song is copywrited then you apply to the owner to publish. This is usually BMI or ASCAP. You will need to let them know how many copies you are going to make, what price you are going to sell them for, and what your market is (strictly US or overseas). You will then get a license to make however many copies you requested and are charged for them - up front. I used a John Denver song and his rules were that he had to personnally review the context to approve or disapprove. Most writers let a manager do this. If you use a song and don't get permission you can be sued - and most companies are quite ready to do this. Especially with Napster and all of its side effects.

I'd suggest you go to BMI and get one of their packets for requesting use of a song. Probably could go to their website and download one - or use their FAQs to get more info. Material that is copywrited is that way for a reason and to infringe is theft. At least in my opinion. As Baxter Black said, "Why make copies? I've got lots of 'em layin' around."

It has been quite some time since I went through this process, and it is a process, so if this is outdated I apologize.

Good luck with your project!

Steve