I just tried the CD Speed registry triack and set the DWORD value to '1' which I presume is 1ECC (Well the DWORD value show in the 3520 thread shows a hex of 9 which is confusing me somewhat)?
But when I run CD Speed and try to run the test it says it does not support this setting?
EDIT: Ignore me. I had an old version of CD Speed. They should put in the latest version in the Nero updates!