LinuxQuestions.org - NTFS hard drive now fails to mount

I've just installed linux, and I have all my old data on a second hard drive, formatted to NTFS. I successfully mounted it a few times with the string

Code:

mount -t ntfs /dev/hdc1 /mnt/ntfs -o unlock,ro

.

Last time I tried to mount it (same string, it's not in fstab), I got error output

Code:

mount: wrong fs type, bad option, bad superblock on /dev/hdc1,

      missing codepage or other error

      In some cases useful info is found in syslog - try

      dmesg | tail  or so

dmesg | tail reveals

Code:

NTFS-fs error (device hdc1): read_ntfs_boot_sector(): Primary boot sector is invalid.

NTFS-fs error (device hdc1): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.

NTFS-fs error (device hdc1): ntfs_fill_super(): Not an NTFS volume.

Is there anything I can do to save this partition?