Glad to help George.
The difference in the speeds is governed by the drives capabilities. Actually the 192K is the least compression, but if 128K worked better then I guess that would be the best for you. I personally have found that the 716 is a better drive than the 760, though the 760 is faster as far as DVD burning goes.
I can't really discuss the new Microstudio, but it is in testing now so hopefully it will be out soon.
