Just a quick question about the audio setting on the PD170. Should I use the 32-12bit mode or the 48-16bit mode when shooting my weddings. I use the 48-16bit on my vx-2100 and don't have problems editing but unsure on this camera.

Thanks

You really don't want to use the 32 kHZ setting. Music will not sound good at 32 kHZ sampling rate and 12 bits.