Looking at this video I don't understand why roads like these don't have more guard rails. I only saw one in the area near the bridge at the end. I would be nervous of driving off the edge on just about any of those turns.

total "film" time?

 

I use my iPhone. There are some nice apps available for recording laps including some nice features like (GPS triggered recording, include additional information like speed into video, ...). I guess other smart phones will work as well ;-)