To be honest I doubt the TY02 media would ever achieve 99%. I have only seen very rare reports of this ever happening. For some reason the TYG02 has been getting 99% scores more often. But as I mentioned b/4 these scores have a +/- error percentage so it is really hard to say what the true burn is actually showing. By exptrapolating the results that best one can say is both TY02 and TYG02 produce >95% burns when using B7P9 FW.
Zevia....I would like to see that TY02 scanned at 8x or 12x and see if you get the same results. Please post that scan. I have scanned several 12x TY02 burns at 4x and the results were all 97%.
Also the burn quality will depend on the quality of the original DVD that was used in the process. If the original has issues then the burned copy will show them and then some.
Cor808....I noticed that you were using the B7T9 FW for the 99% burn. That was interesting b/c all my research shows the TY media burns better using B7P8 FW. I will have to test the B7T9 and see what the results are. Was that burned at 12x and scanned at 8x?