Harddisk Problem Plz help

[aquafusion]

I have a 40 GB harddisk (IDE/ata) It has 1000+ bad sectors. It has some valuable data. I need to recover that.
The HDD is Detectable but does not Show its drives or drive icon when booted from another harddisk. (I have 2 HDD) While formatting using partition manager, it gives me I/O error. Earlier it gave me the CRC error.
What do i do, can it be made to work again ????
plz help!

[abhijangda]

try to run chkdsk