A general rule of thumb is:
If the firewire port is on a desktop PC then it will be a 6 pin port
If the firewire port is on a laptop it will be a 4 pin port
The camcorder, as already stated, will always have a 4 pin port. A few firewire cards will have both 4 pin & 6 pin ports on them, but not always.
Mark.
__________________ Lexicon MC-8B. L/C/R: Blue Sky 6.5's, SL/SR/SBL/SBR: Blue Sky 5's, Sub: Velodyne DD-15
Panasonic NV-HS830, VTX-D800U via TiVo, Arcam DV29 & Sony BDP-S500 > Lumagen VisionHDP > Panasonic TH-46PZ85B. Marantz RC9200