Cannot use the volume on device '%ls' as a continuation volume. It is sequence number %d of family %d for the current media set. Insert a new volume, or sequence number %d of family %d for the current set.
The media set spans multiple volumes. Initializing the volume currently in the named device would destroy the integrity of the media set because the volume has already been used as a member of the media set.
Remove the volume and insert a fresh tape that can be overwritten.