I too love the attraction music!!
There used to be a shop in Downtown Disney that would allow you to custom make cds with music from the parks, and it was listed in Birnbaums's book as recently as this year. It's called Studio M, but, unfortunately, they no longer offer the cds. I asked when we visited in March and was told they no longer sell them. I could have been misinformed by the CM, but I was very disappointed, so if anyone has conflicting info, PLEASE PLEASE PLEASE share!!!
The good news, however, is that they do sell a cd entitled "Where Magic Lives" with WDW attraction music on it. I love my copy, except that there's no Spectro track on it. I know when I bought it (actually IN the Magic Kingdom, though I believe I've seen them at Main Street Megastore online), they also had the soundtrack cds for other shows - Fantasmic!, Fantasy in the Sky....SpectroMagic may have been one of them. I would maybe give WDW a call or visit Main Street Megastore - perhaps they can give you the definitive info!!
PS - P'Cola, I had the same Music From the Parks tape, only we bought our copy in
Disneyland!! Those songs still stick with me a decade later...scary that I remember Magic Journeys!! And EPCOT - my traveling buddies always think I'm nuts to be able to sing "Makin' Memories" everytime we take a picture and "It's Fun to Be Free" the CLASSIC "One Little Spark".
