One Time Backup fails even after CHKDSK /R

Ghost 14, Windows XP

 

I have a C: drive (formatted NTFS) going bad on machine A:  I removed it and installed it as one of the auxiallary disks on machine B.  I have ran CHKDSK /R on all partitions on this drive.  I have successfully done One Time Backups on 2 out of 3 partitions but the 3rd one consistantly fails unless I use the "ignore bad sectors during copy" option.

 

I have re-run CHKDSK /R on this partition and tried the One time Backup of this partition multiple times with no success.

 

 

Any suggestions ?