Downloaded and installed with no problems listed.
Installed the patches available within the download ~ up to patch 4.

Whenever I run the game and it moves on from a cut-scene, it asks for a disk and then crashes.
Am I missing a patch or something else ?

Thanks

Using Galaxy?

Galaxy is a new program a bit like Steam,I suppose but I don't use it as it's still beta.
Haven't seen any ask for disc problems,you may have to ask support and only once
as the second one will become the first.They will reply but at the moment a big sale
is running so they are pretty busy.

Downloaded Galaxy and re-installing the game.
Trust this solves the problem :)

Thanks for your help.