I found it very easy to add music to my scrapbook when I published it to a CD for a slideshow. EASY--AFTER I CONVERTED THE MIDI OR MP3 FILES! Don't know why Max isn't MIDI compatable but found a free program that works very well to convert. The JetAudio site has a free download for a conversion/multimedia player that looks like Microsoft Windows Media Player. It converted Midi files quickly to wav or ogg files. I could even record and save music playing in the background.

http://www.jetaudio.com