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I don't believe any of the game songs are available on iTunes. I personally have just been purchasing all the CDs over the years from Japan, yeah. There are a few places to order from (CDJapan, Play-Asia, Amazon Japan, etc.). Here are some links to things still in-print. Anything you buy though our CDJapan referral links helps us keep reviewing them all...!
- Final Bout OST
1997-09-12; ¥2195 MSRP - DragonBall Z & DragonBall Z 2 (Budokai + Budokai 2) OST [CD+DVD]
2005-01-19; ¥3360 MSRP - Ore wa Tokoton Tomaranai!! (DBZ3 OP) / Kusuburu Heart ni Hi o Tsukero!! (DBZ2 OP) CD Single
2005-02-23; ¥1050 MSRP - DragonBall Z 3 (Budokai 3) OST
2005-03-02; ¥2940 MSRP - Super Survivor (Sparking! METEOR OP) / Kiseki no Honou Yo Moeagare!! (Burst Limit OP) CD Single
2008-07-23; ¥1500 MSRP - Burst Limit OST
2008-08-27; ¥3000 MSRP - Hikari no Sasu Mirai e! (Infinite World OP) CD Single
2008-12-25; ¥1200 MSRP - Infinite World OST
2009-01-07; ¥3000 MSRP - Power of Dreamer (Tenkaichi Dai-bouken / Revenge of King Piccolo OP) CD Single
2009-08-26; ¥1200 MSRP - Progression (Raging Blast OP) CD Single
2009-11-25; ¥1200 MSRP - Battle of Omega (Raging Blast 2 OP) CD Single
2010-12-22; ¥1200 MSRP