I'm attending a couple of concerts at Vector Arena (Paramore & Metallica), and I'll be hijacking my wife's iPhone 4 so I can take some footage of one or two songs. Are there any tricks and tips that I should be aware of to ensure I get reasonable sound and video quality?
Also does anyone have a guesstimation as to the size of the file required for approx 4-5 minutes of such footage if recorded in 720P?