Some many patches like this (especially the official ones), do not remove
all the disc DRM routines ; GTA:VC is so disposed -- that title appears
to install correctly on both Mac & linux, but subsequently will not run due
to the disc based DRM. When you apply the official patch, GTA:VC does start
and run very well on linux -- it still fails to start on Mac OSX with the
same error message ..ie; 'no disc in drive' or whatever...
...what actually goes wrong, is that the Mac didn't (doesn't, can't) read a
set of registry key variables from the disc at installation time ; linux does.
As linux does read these values, when you apply the patch, everything works
as the patch finds the required keys in registry. When such patches cannot
find the required registry keys, it fails with the same error because seeing
as it can't find the keys in registry, it tries to read them off the disc again,
which the Mac cannot do due to the design of the OSX scsi driver -- catch22.
As all these keys are invariably unique, importing the keys from another disc
does not work. Sorry to say, if you're on Mac you should avoid disc based
releases at all costs, unless you are 110% sure there's no disc based DRM being
used -or- you are 120% sure any official patch removed enough of the DRM components
and/or works in crossover/wine on Mac OSX.
Cheers!
ps: at the time of this writing, the GamersGate bundle version is on special for
$7 (for another 22hours from now) - note that the online version of Securom does
typically work in CXG on both Mac & linux...