text: If you want a good sound when you are finished, I can think of only one way.  What you need is called a multi-track recorder.  You could search ebay for 4-track or 8-track recorders or "studio recorders".  What such a device will do is split the tape into 4 or 8 sections... each of which carries its own information.  For example, track-one might carry the drums recording, track-2 might have the bass-guitar recording, track-3 might include your media sample at the proper time...etc  (you get the idea).\n\n   When you have your tracks recorded, such a machine will output everything together to a line-out jack (usually a mini-plug like headphones, but sometimes a 1/4'' plug).  You can then record it all to one track of tape, cd, mp3, or whatever you can plug it into.\n\nNow, studio recorders used to be pretty expensive, but as computers have taken over their role in large part, you can often find used ones pretty cheap.  As I suggested, try ebay.  You may also find that a small local recording studio will do the mix for you for a small fee.\n\nI hope this helps you.