Heres a small tip for you guys. Say you have alcohol 120% and a .bin file but no .cue file. Well you're only quasi screwed. 90% of all .bins ive ever had can be renamed to .iso and work just fine. Ie you have d2image.bin, change the extension to .iso and wham it works in alcohol. Sometimes its a rare thing, or if you're like me i never get the .cue files i just rename them.
What clonecd does is create an image of the program. (useless to you in this topic if you have no d2 cd)
What daemon tools / alchohol 120% does is create a "virtual" cd drive, you "load" the image onto the virtual drive, and run the game from there. (under my computer, there will be a new CD drive)
*note Alky can also create images, so can nero, and clone cd. Alky does both in same package.
If you are having trouble figuring out the mounting press F1 in alky and read the damn instructions, very simple you can even automate them with a .bat file to auto load an image when u double click the icon.
If you STILL don't get it open up nero or your fav burning program and burn the damn thing to CD. *note the .bin to .iso rename works great for burning in Nero too.
One more thing, if d2 STILL asks you for the cd when you get it mounted, try running it via My Computer->VirtualDriveD2ImageIsIn.
If that fails you could always just burn it to a CD and use the CD in the drive you installed d2 from. No burner? Reinstall D2 using the image. But I seriously doubt you would need to go that far.