Just a few days ago I used this feature for the first time in Platinum. Never burnt a CD directly from Sonar before... well, it did work ok... but what was very irritating was the fact that there is no progress indicator ... I had actual thought this thing is not working until I went to the tech room and found the CD tray open with the finished burnt CD ...

It must have burnt it at max speed, which is what I would not do if I had a choice...