I have 2 PC's with the same firewire card ADS Tech Pyro PCI 64, XP operating system but different Motherboard & CPU.
On one PC the Sony DV connents via the firewire and all is Ok....see complete registry info below.
The main differences between this and the PC that doesn't work is these lines
"DeviceDesc"="61883 Class Bus Device"
"Capabilities"=dword:000000b4
"ClassGUID"="{7EBEFBC0-3200-11D2-B4C2-00A0C9697D07}"
"Class"="61883"
"Mfg"="Microsoft"
"Service"="61883"
"ConfigFlags"=dword:00000000
"Driver"="{7EBEFBC0-3200-11D2-B4C2-00A0C9697D07}\\0001"
"ActiveService"="61883"

On the other PC the Sony DV is recognised but the software ( think it is 61883 class bus device) can't be found/installed... see the registry info below

Can anyone tell me what is going on here. I have searched the web and have seen that other people have trouble with Sony DV connecting via firewire.

Is one solution to manuallly modify the registry ( I have not done this before) or are there any other ideas?

PC1:-SONY DV recognized Software installed and Recognised as Digital Video Device

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\1394\ Sony&DV-VCR]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\1394\ Sony&DV-VCR\A0AC18021460008]
"DeviceDesc"="61883 Class Bus Device"
"Capabilities"=dword:000000b4
"HardwareID"=hex(7):31,00,33,00,39,00,34,00,5c,00, 53,00,6f,00,6e,00,79,00,26,\
00,44,00,56,00,2d,00,56,00,43,00,52,00,00,00,00,00
"CompatibleIDs"=hex(7):31,00,33,00,39,00,34,00,5c, 00,41,00,30,00,32,00,44,00,\
26,00,31,00,30,00,30,00,30,00,31,00,00,00,31,00,33 ,00,39,00,34,00,5c,00,41,\
00,30,00,32,00,44,00,26,00,31,00,00,00,31,00,33,00 ,39,00,34,00,5c,00,41,00,\
30,00,32,00,44,00,00,00,00,00
"ClassGUID"="{7EBEFBC0-3200-11D2-B4C2-00A0C9697D07}"
"Class"="61883"
"Mfg"="Microsoft"
"Service"="61883"
"ConfigFlags"=dword:00000000
"Driver"="{7EBEFBC0-3200-11D2-B4C2-00A0C9697D07}\\0001"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\1394\ Sony&DV-VCR\A0AC18021460008\LogConf]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\1394\ Sony&DV-VCR\A0AC18021460008\Control]
"ActiveService"="61883"

PC-2:SONY DV recognized Software not installed

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\1 394\Sony&DV-VCR]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\1 394\Sony&DV-VCR\A0AC18021460008]
"DeviceDesc"="Sony DV-VCR"
"Capabilities"=dword:00000034
"HardwareID"=hex(7):31,00,33,00,39,00,34,00,5c,00, 53,00,6f,00,6e,00,79,00,26,\
00,44,00,56,00,2d,00,56,00,43,00,52,00,00,00,00,00
"CompatibleIDs"=hex(7):31,00,33,00,39,00,34,00,5c, 00,41,00,30,00,32,00,44,00,\
26,00,31,00,30,00,30,00,30,00,31,00,00,00,31,00,33 ,00,39,00,34,00,5c,00,41,\
00,30,00,32,00,44,00,26,00,31,00,00,00,31,00,33,00 ,39,00,34,00,5c,00,41,00,\
30,00,32,00,44,00,00,00,00,00
"ConfigFlags"=dword:00000040

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\1 394\Sony&DV-VCR\A0AC18021460008\LogConf]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\1 394\Sony&DV-VCR\A0AC18021460008\Control]