If one has the latest version of Apple's QT Player installed, and a fast Quad-core, or i7 CPU, there should be no problem with the AVCHD material. Note: it is very processor intensive, so the CPU plays a very vital role in the enjoyment of editing this highly-compressed footage.
Thanks Bill. What Pre set should I use. AVCHD?
I have a Alienware quad core, so I think I got the juice to work with it.
If it's full AVCHD, that would be the main Preset. Now, under that, you will have PAL and NTSC (choose by where you reside), and then the Audio. If you record in DD 5.1 SS, choose that. If stereo, choose that one.