[Wine] Re: UNZ FM TOWNS Emulator not reading discs

SpawnHappyJake wineforum-user at winehq.org
Thu Jul 7 17:30:05 CDT 2011


> I thought the problem was more along the line of copy protection but what your saying makes sense.


That's another misconception I've found out there! Glad you pointed it out. I confront it in my shpeel. People think that they need some fancy CD emulator to get past copy protection because "plain CD emulation" wasn't enough, when in fact, the problem is that they weren't even emulating an optical drive to begin with!

However, if a rootkit is installed, something running near the kernel level in this case, and I'm talking about Windows, the rootkit can bypass the hardware reported by the kernel-level driver and get hardware info right from the kernel and see that the cd drive is fake and communicate to the game saying that the cd is a fake. SecuROM is such a rootkit. Obviously if the kernel itself was doing the emulation, and not a kernel-level driver or a kernel module or a kext, we wouldn't have this problem.
So Virtual CloneDrive and Daemon Tools actually install _their_own_ rootkit to combat SecuROM. That IS an example of a "special" CD emulator getting past "copy protection", but I want to stress the point that if you are simply showing the files in an iso in a folder without emulating an optical drive, your issue is not that you aren't "getting past copy protection" but that you aren't even emulating an optical drive. Besides, it might simply look for CD hardware __without__ a rootkit, in which case you not emulating an optical drive _at_all_ is the problem _not_that_you__aren't_"getting_past_copy_protection".

Cheers,
Jake







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