Hi
I had a similar weird problem 3 weeks ago when I reinstalled windows. H&D2 game me
this kind of error when inserting a new disk via Deamon tools. I don't remember if it was
Original or Sabre. I reinstalled the game and it worked! You can also remount or reinsert
the new cd you are installing. I see this error happend with the Sabre CD2. Same happend
to me, but reinstalling or remounting worked. I hope this helps.
If it doesn't work, try to download the game from our website again and do a fresh installation.
Game files here
Game 1.12 patch