I run a Mac as well....
I used Roxio Toast with Jam for a while... Now I pretty much like to set my fades with a free program called XO Wave
www.xowave.com it will burn CDs but only at 1x speed, they make a payware version that will burn faster speeds as well, but I still use the free one for setting gaps, fades... Then I go and use Toast for the duplication burning, still have redbook CDs none of my stuff has ever come back to me, not working on a CD player somewhere.
works for me, on a Budget.