For anyone new to the franchise who is interested in the fantastic soundtrack, both NiGHTS into dreams's Perfect Album as well as the Wii sequel Journey of Dreams's soundtracks are now available on iTunes, and are listed on Amazon as well, in North America, the UK, and Japan. Got the heads up via TRiPPY's FB post.
Formerly these were only attainable [in physical form/legally] by ordering from Japan a few years back, so this is great news.
Some more details regarding the Perfect Album:
Each level gets an extended 10 minute track featuring a section for each mix heard in the game. There is the original mix, sweet, bitter and spicy. These correlate to the A Life's reaction to how you play. The album is three discs (both games have 3 discs), the third featuring music from Christmas NiGHTS.