Hey, Vladan -
I've got everything worth having. The absolute, most accurate Journey Karaoke CD in existence is the Amerising Journey Karaoke Anthology (AMS4005), and it even includes 2 Perry solo tracks ("Oh Sherrie" and "Foolish Heart") 18 songs, and most of the versions are outstanding. Sound Choice has a few tunes that no other company has done (like "Suzanne"), but they aren't very accurate. There is also a Legends Series Journey Vs. Foreigner CD (with equal tracks from both bands), but the problem with the Legends versions is they will fade out soon after the vocals are done, which is a sin for songs like "Who's Crying Now" (YES, they fade out right after the first few notes of the guitar solo!).
If you have a hard time finding the Amerising disc, I've seen it republished by another company -- just Google "AMS4005" and you should find it. Best thing is, it's never very expensive. Here is at least one link that lists it for $13.95:
http://www.karaokeklub.com/cdlist.cfm?cdid=AMS4005
Hope this helps.