I just got the HF-G30 for videoing large halls. Here is Thom Hartmann, Seattle, May 1, 2014 raw video from Canon HF-G30 recorded at 1080i, 60fps, 17mbps into MP4 files which were then joined by COPY /B command into one file of 9GB. Video'd at a distance of approx. 75 feet with 20x zoom.
So this illustrates long range, low light, high bitrate, concatenated MP4s, and YouTube's rendering performance in one test.