Knoppix doesn't see one directory on a partition

hi

I have this problem: my windoze xp won't boot even into safe mode, so I decided to use knoppix to rescue some of my more important data. however, although knoppix sees both of my partitions, and I do have access to them, it doesn't see the most important directory on the second partition, the one I keep music in. Can anybody think of any solution? Thanks in advance for any help.