Compuetr doesnot recognoze the camcorder


When I connect my cmcorder JVC GR DVL 725 U with forewire cable connected to PCMCIA card with fire wire port, my computer with XP SP 3 doesnt recognoze the camcorder.
Computer recognizes the PCMCIA card with fore wire port but when I connect the cable with camcorder and turn on nothing happens.

Please help me out.