I've been trying to burn some things with Toast 6.0.3 today, but no matter what I try I get the error "Could not record the disc because of a MacOS error. Result Code = -50"
I burned some CD's just the other day using the same software (Toast 6.0.3, Panther 10.3.1) without problems. The only thing I can recall installing is Shape Shifter, which I have disabled along with APE.