Back-up stils at certain volume with no error code

Systems stills at 38,33 GB from 70,50 GB, no error message, deleted all data, restarted back-up --> same issue.

Updated firmware on My Book Live 1GB witg rev: 02.43.03-022

and updated SmartWare software.

Laptop runs W8.1


Are you running a files backup or category backup?

Have you tried resetting the drive?