MUTON53398  I've been using this software since the first publicly available alpha builds. In that short space of time the developer has made significant improvements to the features and user interface. I'm using a PPC G4 mac running os 10.4.11 and have had successful burns each and every time using both high quality and lower grade media. I've used the other utilities available and they don't compare. As with everything else I do on my mac this 'keeps it simple'. A great piece of software.  
(Version 1.0b3)