Toast--Buffer under run protection--does it work?

Lately I have been having trouble with the "device has drained its buffer without under run protection" error. I usually can deal with it with several things I try, but for the last couple of projects I can burn only one or two disks before I start getting this problem. Then I can't burn until I let the computer rest overnight, no matter what I try.

I have heard that Toast has a buffer under run protection option. Does it work? If it does, I'll down load it.