Question : Problem: Hard drive not displaying data

I have a hard drive that I can hook up and it acts like it is working.  It displays that there is used space on the drive, however I can not see any data.    Is there any way I can get the data off the hard drive.  It was a orginally a windows XP Drive that will not boot up.  I been trying to hhok the drive up as a secondary drive.

Answer : Problem: Hard drive not displaying data

try booting off a CD, like UBCD4Win and see if you can read the contents of the drive