Pioneer DVR 720H no sound Capture via DV iLink

Hi

I have been having an ongoing problem trying to get Sound and Vision out of my home made family DVD's using the above device - into my Avid .. I can get pictures out no problem but NO sound comes via the firewire Port

Bear in mind I am not at all trying to capture encrypted DVD's they are my own home made DVD's with a sample rate of either 32K or 48K something that the DVR should understand.

My question is does anybody know of a flash or hardware manipulation that can make my DVR play out sound and vision via firewire (DV Port)? I really like this DVR as it is one that I can play straight out of my Avid into the DVR without having to encode timeline via QT etc.

If I have posted to the wrong section could the administrator kindly place it where I might get a bit more help.

Many thanks for reading this

My system
AMD Athlon(tm)64 X2 Dual Core 4400+ 2.31Ghz, 4G DDR2 RAM with 3.25 GB of available RAM to Windows, Motherboard GIGABYTE GA-MA69GM-S2H, Realtek HD Audio Card (Audio driver v5.10006767) WDC 250GB Drive, WD 1TB Ext Drive, NVIDIA GeForce 7600 GT, DVD TSST corp SHS2039, OS Windows XP Professional 32bit, SP3