Reddit reviews DRAGONS DOGMA ONLINE ORIGINAL SOUNDTRACK(2CD)

Well I have no idea about actually buying them all digitally, outside of the Masterworks soundtrack on Steam, but short of downloading a gamerip (which is always a mess), you'd probably want:

• Dragon's Dogma Original Soundtrack - 2 Discs, 86 Tracks (All vanilla, no Dark Arisen content)
  
• DDDA: Masterworks Soundtrack - 53 Tracks, it has all the Dark Arisen songs (tracks 1-25), rehash of vanilla soundtrack (tracks 26-48), unreleased vanilla songs (49-51) and 2 bonus arrange tracks not in the game (52-53).
  
• Into Free -Dangan- by B'z - Title song from vanilla DD, not included in Dark Arisen due to licensing, and so probably also not included on either of the soundtracks for the very same reason. You'll have to grab the single if you want it.
  
  That's about as complete as it gets, I have no idea if this is every song or not but I'd hazard a guess that it is, also the vanilla soundtrack IS 86 tracks (that youtube playlist is missing disc 1 track 10). I don't know why but in the west we got a watered down 34 track release (for example, that release doesn't have the Cockatrice Battle variation of the Griffin Battle song, which the 86 track one does).
  
  Not certain if the Japanese 86 track OST got a digital release or not, you might have to check Japanese websites for that if you want to buy it, otherwise you'd have to settle on the physical version. If you can't go through Amazon Japan, you could also try giving PlayAsia a look.
  
  Hope that helps!
  
  ^As ^a ^bonus ^if ^you ^like ^the ^music ^and ^want ^more ^in ^the ^same ^style, ^there's ^a ^2 ^disc, ^66 ^track ^OST ^for ^Dragon's ^Dogma ^Online ^here, ^it's ^done ^by ^the ^same ^composer ^and ^everything.