The exact message will be - Please insert the DVD of 'The Witcher'! - On the other hand, some solutions that have worked for others have included.- Backing up and deleting the Atapi.sysFor computer newbies, this can be accomplished by going to My Computer/(Primary or Master Hard-drive, normally C /Windows/System32/Drivers.Find the file atapi.sys, make a backup of it (eg copy it to somewhere you'll remember) and then delete it. If the game is clashing with a CD/DVD emulator software, the message WILL say please insert 'ORIGINAL' disc etc, however if there is no clash with emulator software, but the game just doesnt seem to pick up the disc, it will not say the word 'ORIGINAL'. One thing I'd like to point out is, have you made sure you read the error message exactly because there are two that might pop up. Hello ^^, I am experiencing similar problems and I have directly contacted the Tages Technical Support team regarding my problems.