DVD drive is not reading the disc

[Stinkt!er]

I have got exactly the same Problem here. Bought King's Bounty the Legend (German Version) at my games store of trust (can proof this). When I put the Game into my DVD Drive the reading light blinks shortly and then nothing happens...

System Specs: Windows XP SP3, AMD Athlon 64 X2 4400+, 2Gb Ram, Radeon X1800 512mb, NEC DVD_RW ND-4550A

My Computer is filling all the requirement of the Game, all Drivers are on newest Version, my DVD Drive works fine for all other DVDs and Games, never had Problems with it. On my Office PC the Autorun and Installation Screen starts as intended when putting the DVD into the Drive (although I cant install there cause of business rules ) So, the Game DVD should be correct!
Other Games like HOMM V and Fallout 3 work perfectly fine on my system...

What can I do?

It makes me quite angry not be able to play a Game I bought legaly, probably cause of the copy protection.....