Hi all has anyone played this game before? just to my curiosity, has there been 2 version of this game? i have noticed, the game that i bought earlier, has only 20 songs. Where as, listed in Disney (US) website, tracks is up to 30 songs here's the list why would they make 2 version with 10 songs less ? also, does that mean, i need to buy US version, if i want to have the complete version (with xtra 10 songs)?if yes, will it work with Aus PS3 ? is amazon the best place to buy this? thanks in advance.