Ressurecting a dead thread here, but I'll add my 2 cents to this.
I've been trying to use Alcohol 120 to rip an image of the disc to my HDD so I won't have to tote CDs around with my laptop, I can just mount the image to a virtual drive instead.
I've had difficulty with 3 games, Sid Meier's Alpha Centauri, Planetary Pack. Which is safedisc 1, Civilization 3, which is also safedisc 1, and Civilization 3: Conquests, which is safedisc 2.9.
Now here's the odd part, using the default safedisc profiles in Alcohol, I'm able to rip the image successfully. However during the installation process, I get a CRC error (which would usually indicate a bad rip). However if I install off of the original CD, the ripped image suffices to launch the game in all 3 cases, the emulations options I have on are 'ignore media type, launch cd/dvd manager without ignore media, and RMPS. NONE of the extra emulation is enabled.
So if I had a bad rip, wouldn't it fail the copy protection check and not just CRC error during the install process?
I've tried reading from a Pioneer DVD-ROM, DVD-115. And From a Lite-ON, LDW-451S with the same results both times.
Other games that just have bad sectors on the CDs for protection work flawlessly. So I ask, does anyone have an idea as to what's going on?