I'm not familiar with Panasonic's consumer lineup, but if it's anything like what Canon's HV20/30/40 was like, with HDMI out, you could bypass the AVCHD compression with the use of the BlackMagic Intensity Pro card, installed in a Mac Pro; Of course you would have to be tethered to a Mac Pro while you are recording. However, since you're using a MBP, like spinnerly's has pointed out, USB 2.0 is your only option for transfer.