0xe000fe34 - A checksum of the data has failed-HELP

Hi All,

 I am new with the Backup Exec 2010 r3 and I made a schedule for weekly backup...

We are using removable USB Hard Drive -2TB WD

From two weeks agoת every time i got this error massage: 

0xe000fe34 - A checksum of the data has failed

I tried everything that can be possible from symantec support web:

5. Backup-to-disk located on a Removable USB drive:

a. Navigate to the removable drive's Properties on the Devices tab

b. Go to Device settings

c. Uncheck the box for "Auto detect settings"

If the above troubleshooting steps fail to resolve the issue, it is recommended to contact the hardware vendor and get the tape device(s) or hard disks that host the backup to disk files checked.