LinuxQuestions.org - dosfsck -rw /dev/hda8 >>> error

hi

i got an error in the file system (due to a electric breakdown)
tried to run dosfsck to recover the correct file system but it doesn't work.
(actually i just have one unreadable directory)

automatic:

> dosfsck -aw /dev/hda8

dosfsck 2.10, 22 Sep 2003, FAT32, LFN
Reserved field in VFAT long filename slot is not 0 (but 0x0d).
Auto-setting to 0.
Start cluster field in VFAT long filename slot is not 0 (but 0xdc8f).
Auto-setting to 0.
Unfinished long file name ":4Yh:1TO:53O:8qj:6YE:Afj:8GZ:8ea:ExH:Ekn:2Ub:4dz:41z".
(Start may have been overwritten by &X\204È*\207\211.\222\027û)
Not auto-correcting this.
Wrong checksum for long file name ":4Yh:1TO:53O:8qj:6YE:Afj:8GZ:8ea:ExH:Ekn:2Ub:4dz:41z".
(Short name &X\204È*\207\211.\222\027û may have changed without updating the long name)
Not auto-correcting this.
Long filename fragment ":0Sw:2dL:8bg:E9P:1m+:AiX:5Nq:DEO:719:7kR:4Rw:9jz:DNa" found outside a LFN sequence.
(Maybe the start bit is missing on the last fragment)
Not auto-correcting this.
Checksum in long filename part wrong (cc vs. expected 93).
Not auto-correcting this.
Erreur de segmentation

manual:

> dosfsck -rw /dev/hda8

dosfsck 2.10, 22 Sep 2003, FAT32, LFN

[...]

Long filename fragment ":Bi4:5yK:Ek8:2zR:EYz:3O+:3RD:4gR:2+L:DpX:9l+:4OG:6ed" found outside a LFN sequence.
(Maybe the start bit is missing on the last fragment)
1: Delete fragment
2: Leave it as it is.
3: Set start bit
? 1
*** glibc detected *** free(): invalid pointer: 0x083dfb18 ***
Abandon

any help ?
thanks !