Help, FireWire drive don't mount anymore...

I've tried everthing, even fsck ....
This is what it says:
laurs:~ laurs$ fsck -n /dev/disk2s3
** /dev/rdisk2s3 (NO WRITE)
BAD SUPER BLOCK: MAGIC NUMBER WRONG
Floating point exception
or
laurs:~ laurs$ fsck -p /dev/disk2s3
/dev/rdisk2s3: BAD SUPER BLOCK: MAGIC NUMBER WRONG
/dev/rdisk2s3: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
or
laurs:~ laurs$ fsck_hfs -f -r -d /dev/disk2s3
** /dev/rdisk2s3
** Checking HFS Plus volume.
** Checking Extents Overflow file.
** Checking Catalog file.
** Rebuilding Catalog B-tree.
hfsUNswapBTNode: invalid node height (1)
** The volume KeyPlug could not be repaired.
volume type is pure HFS+
primary MDB is at block 0 0x00
alternate MDB is at block 0 0x00
primary VHB is at block 2 0x02
alternate VHB is at block 156039262 0x94cf85e
sector size = 512 0x200
VolumeObject flags = 0x07
total sectors for volume = 156039264 0x94cf860
total sectors for embedded volume = 0 0x00
Any suggestions?
Thanks.

I had similar problems - SanDisk FireLite would mount under Windows XP but not Mac OS on the same MBP. Solution was to buy a WD Passport, which works fine.
-Z

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