Game dosent start

maybe your putting it in the wrong drive -_-

If you're using a CD emulator program or have
CD copying software like Nero etc, installed ...
newer games don't like that. Try uninstalling or
disabling such programs.

Possibly you have some sort of copy protection program
in the background for another program. Something like
Starforce or Securom... they might interfere with just
about everything. Sometimes you can get rid of them
by unstalling the game that uses them or you might have to
get an uninstall program off the internet.

Possibly the DVD is just dirty.
It is a genuine copy isn't it ?! A pirate copy might
work but if it doesn't you can hardly complain.