avchd archive/backup -retrieve choices?

[MarkQC]

I've searched, but can't find the answer to my question,,,

I have a Sony HDR XR500 and the Sony PMB (Picture Motion Browser) software that allows me to burn the camera HD content to a blu ray disc.

It goes pretty quick so I'm 'assuming' it does not render it, and it goes onto the disc in the same AVCHD format - true?

So what do I want to do - - I want to be able to archive/backup the AVCHD files from my camera, then have the capability to retrieve them later BACK to the computer in case I want to re-edit them into something (for now, I'm using Vegas movie studio platinum 9.0 as my editor).

any help appreciated