My PC crashed a few days ago, so I rebooted my PC to find that my
external HD was no longer mounted and therefore was not visible or
accessible in windows xp so I tried to mount my LaCie d2 500Gb drive
again like instructed to do so in the manual by turnign on the HD then
plugging in the Firewire cable to my PC I tried this for days with no
luck at all so (I also tried connectign the drive using USB cable also
to see if it would mount).

I decided to look up some thing son the web to see what could be done
and it turns out many other people have similar if not the same bad
experience as I had just have.


When I turn on my HD and connect it to my PC it makes unusual clicking
sounds while trying to initialise it's mounting but fails each time
making it inaccessible and not possible to view any content of the HD.
(while trying to get it to mount it did actually autorun/mount twice
and I could see all files/directories were still on the HD but when I
tried to access them my PC would either crash/freez slow down or I was
not able to access anything and windows gave me some message saying it
was not available and I have also had I/O errors too)
Below are two web links that describe the symptoms I am experiencing with my HD:

These two web links describe what problems I am having such as this: 
Failure Symptoms:

    * Specific files & / or directories become inaccessible and disappear
    * In more severe cases, the entire drive becomes inaccessible and disappears


http://www.dataclinic.co.uk/data-recovery-external-disk.htm

http://www.dataclinic.co.uk/data-recovery-lacie-big-external-disk.htm


I would like to recover the data on my HD so if you can find any
software that is proved to be capable of this then it would really
help me I have already tried many programs including ontrack, software
R-Studio, GetBackData and a few others all fail to work because the HD
is not accessible and is not visible in XP home OS.

Your Help Is Greatly Appreciated.