Recording to an external Hard Drive

I own a HVX-200 and I have heard there is a way to record right to an external firewire drive (without using a computer) via firewire. I know that there are products out there such as the Firestore, but I would rather just bring my raid drive.

Also, I am about to start doing video depositions and I need a way to record MPEG2 files on the fly. Video depositions can be very long (4-6 hours) and I need a way to get them onto DVD as quickly as I can without spending time compressing or editing. I have heard there is an adaptor for the HVX-200 that enables it to record in this format....

My other options are to buy a stand alone DVD writer or bring my computer (a MacBookPro) and record into Final cut pro (however I would still need to compress!). Does anyone know if you can record MPEG2 directly to a mac??

I am assuming that to write a DVD as quickly as possible that a file MUST be an MPEG2

Thanks!

Gary