I'd like to add my vote for the possibility.
I own the game on GOG but I also have the CD version.
I started playing the GOG version but after installing the Windows version with
Squirt the Cat's installer, the difference is amazing.
It works perfectly with Windows 7 64-bit, the only negative being I have to swap disks.
The GOG version was acceptable for just walking around talking to people, but once the intense scenes start the bad quality video really detracts from the impact.
Even if they just have the CD image files as an unsupported extra it would be good for those who want to go to the effort to burn their own CDs in order to play the best version of the game.