John, I am not picking on you, but there is so much that is so wrong with Toast that it is difficult to give a short version of it. The short version is that it is not ready for prime time in Leopard. I find Toast 9 unusable with EyeTV files in Leopard.
Unfortunately, the original poster's experience with Roxio tech support is not uncommon. Any number of people, myself included, have had similar or worse experiences with Roxio tech support. Roxio's tech support has, perhaps, the worst reputation of any software vendor in the Mac community. It did not come by that reputation by happenstance.
Fundamental change is in order. To begin with, everyone at the company, including the owner, needs to be reminded that the reason they have jobs is because of customers who purchase the company's products. People do not simply invent problems for the purpose of annoying tech support. Customers do not appreciate being told things that are patently untrue.
There is substantial doubt that Roxio even has sufficiently current software to properly test Toast so as to be working with configurations similar to that of the customer and recommended by Roxio.
What is needed for Toast is not a "bug fix", but a complete rewrite. In my experience to date, Toast, in conjunction with EyeTV files using Leopard is the worst performing software it has been my misfortune to encounter. Roxio tech support has done absolutely nothing of value to resolve the problems and has consistently been...well, I hope you get the idea.
I keep a Tiger (OS 10.4.11) drive in which I am booted at the moment for the purpose of burning files as it is the best combination of things to actually successfully burn DVDs. Quite simply, that is not right.
All of that said, I do hope that the impending update provides some relief from the current problems. Any improvement at all would be most welcome.
Nevertheless, there are a lot of things that need changing.
You asked the original poster about how he was measuring the burn speed. Please allow me to ask the question "just how is Toast measuring the speed which it displays during a burn?" The displayed average burn speed of a multiplexed EyeTV file, during a "good burn", on my equipment is, typically, 3X or sometimes 4X. 2X (or less) is not that uncommon. This is my setup: DVR-115D burner (with updated firmware) using Verbatim 16X discs (which are actually rated at 18X, as is the burner) on a dual 1.42 GHz MDD with 2 GB RAM and a SATA hard drive. Burns from a disc image (.toast file), typically, are shown as a bit faster. The estimated time of the burn which Toast displays has never, ever, not in one single instance had any rational relationship to the actual elapsed time of the burn in my experience.
If the "speeds" which Toast displays are not real, why are they shown at all. Alternatively, why are they not realistic numbers? As one who is not inside the company, it seems pointless, indeed counterproductive, to display numbers which are not realistic.
To reiterate, my remarks are not directed at you personally. In my opinion, the company needs to improve both its product and customer support. In my experience, neither is very good at the present time.