Not sure about the ripple, but Chris is right. 2 hours of HD material compressed for BluRay...and for SD DVD...will take a while. BluRay encoding takes a while normally. On my 3.0 Octocore MacPro it took 10 hours. OH, until I enabled QMASTER that allows me to use all of my processors to work on this. Then it took 5 hours.
A laptop can't take advantage of QMASTER...so it will take longer. What you gain in portablity you sacrifice in speed.
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD...don't miss it.
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Little Frog in High Def