I just added a B drive to my tivo and expanded. Now when i tried to use Sleeper, all i get is:

Second MFS Driver Needed: No such file or directory
Second MFS Driver Needed2: Illegal seek
Second MFS Driver Needed: No such file or directory
Second MFS Driver Needed3: Illegal seek
mfs_load_volume_header: Total sectors(79358976) mismatch with volume header(319475712)
mfs_load_volume_header: Loading anyway.
mfs_load_zone_map: Primary zone map corrupt, loading backup.
mfs_load_zone_map: Secondary zone map corrupt, giving up.
mfs_load_zone_map: Zone map checksum error!
Unable to open MFS drivers.

Is this error because i have installed a B drive? If so can i remove the B drive?Or can i just change something in Sleeper?

Note: I tested the A+B combo in my tivo for about 10min, i did not record anything. I would like to keep all my shows that were on the A drive if possable.