From what I found, video recording in public place is legal. Recently ca passed a law that allows drivers to use such device. Other places do not seem to have any law that prevents it. I think recording audio can be a touch subject so I disabled it. So many crazy drvers on the road and I think such device should be recommanded by law imo.

__________________
2011 X3 35i
2008 X5 4.8i
2003 330xi -sold-
2001 X5 4.4i -sold-
2001 M5 -sold-
2001 M Roadster (SCed, Highly modified) -sold-
2000 M Roadster -sold-
1995 325is -sold-