All of our helmet camera videos are taken in DVD quality mode, they look amazing on our 24" monitor at home, but after youtube gets done with them, they often look like something you would see on 1970's TV!
I just finished watching one of our mountain bike tour videos on high quality, its not DVD quality, but it sure is better then what they used to stream, check it out, click on the "Watch in high quality" link under the video: http://www.youtube.com/watch?v=d9g_eCUFXk8
This reminds me, I still have videos from Utah and Colorado that need to be processed. I'll upload those to our YouTube channel this week.