which allowed me to burn at 9.8 Mbps
This is WWWWAAAAAYYYYY too high! Just because that is the max bitrate you can use…doesn’t mean you should use it. You are probably going to have a bunch of people saying that they can’t play your discs…or that it crashes or starts to stutter on their players. There is usually no need to go over 5 or 6 Mbps as long as you start with good quality video and use a good encoder.