doom 3 install

[torstn]

i have this game (doom3) which is 2 CDs and during installation it asks for the 2nd disc. so i mount the 2nd disc and clнck ok but it don'T work (still asking). once i mount them both discs open the autostart menu like it was the real CD but still the 2nd disc is not recognized by the installer.

originally they were iso images (or SOME other image type) then i unpacked them with isobuster and now i have used nero to AGAIN extract an image (nrg format) from the files
(I'M not using images often therefore the complicated way)

edit by admin: Please don't cross post, that only leads to confusion because the answers will be scattered over several threads. The english forums are more highly frequented so I kept this post and deleted the german one.

[NetSoerfer]

You images are pretty much useless, all of them. From what I*ve read, they originate from ISO images which do not contain enough information about the original CD for the copy protection to work. No matter what you subsequently do with them, that information is lost.

Please create new images from your original CDs, using Alcohol 52%.