Newbie audio troubles

[Billy C]

Went and got some blank RW's and after playing with settings and cranking out 2 more discs with no audio I went ahead and cloned the whole disc and I have a playable movie with sound. Thing is the quality slider is now about in the middle, yellow, but the video quality is still good. Is there an acceptable limit to how far down this arrow should be allowed to fall? Is there any way to preview the audio and video of the ripped file before actually burning it?