O.K. I found the solution-maybe not the best one but it works. I've mounted the same local directory(with content of all cds) as 4 cdrom drives lebeling every drive and the games accepted that.

I have a big problem with switching cds. After finishing the first Cd the game doesn't recognize the second cd, and vice wersa then I start game from second cd the game doesn't recognize the first one. Any ideas? I'm using dosbox 0.73 and I'm playing on Lenovo N500. The game runs ok for me at 15000 …