Twice I tried to burn a CD with a long series of tracks only to have Audio Hijack Amateur, I mean Pro, "unexpectedly quit". Since there is no way to save one's work I had to redue the sequencing and and removing of track before attempting to burn again. Also tracks could not be deleted as each time I selected the delete button I would receive an error msg. "Mac OS -600". Also there is no way to patch together tracks that the program splits. With the above mentioned bug fixes and the patch enhancement with app would be worth buying.