"in my opinion clone cd is able to do a copy that is a real 1:1… "
It is not a matter of opinion, it is a matter of fact. CloneCD CANNOT make 1:1 copies of SecuROM 4.8x games. It IS physically impossible.
IT IS IMPOSSIBLE TO MAKE 1:1 COPIES OF:
- SecuROM 4.8x
- CD Cops (with rare exceptions)
- ProtectCD 5
NONE OF THESE PROTECTIONS USE WEAK SECTORS! - They, as GF already stated are irrelevant in considering SecuROM 4.8x
HOWEVER - there are tricks you can use to fool these protections. With Twinpeaks, the disc is NOT a 1:1 copy, but because the game’s guard module cannot tell the difference (due to the way that twinpeaks affects the sector’s read times) - the game runs.
Alcohol stores RMPS info on the disc and when RMPS emulation is enabled, the Alcohol driver intercepts calls to the CDROM hardware and dynamically changes the results as necessary - so the disc behaves EXACTLY like an original - read times for parts of the disk, sector data etc.
The CDR disc is therefore NOT 1:1, but it contains all the necessary information for the emualation driver (Alcohol 120%) to make the program think that it is reading a real disc.
In my opinion, an emulation-enabled backup is almost as good as the original because the only thing you have to do to make it work is install a small piece of software and tick one option. Easy. UT2003 works absolutely perfectly with RMPS emulation.