My h/d (sda1) appears to have boot problems in Windows XP sp2. I loaded Knoppix and attempted to mount the disk and am getting the following errors:

NTFS-fs error (device sda1): read_ntfs_boot_sector(): Primary boot sector is invalid.
NTFS-fs error (device sda1): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.
NTFS-fs error (device sda1): ntfs_fill_super(): Not an NTFS volume.

I am attempting to retrieve my data files since the h/d seems to be corrupted. Is there a way to get it working where I might be able to see the file?