Rather than use 'mount -L' use 'mount -t' as suggested by SqdnGuns.
I notice the device IP address is 192.168.6.200. Is your 'nix box is on the same 192.168.6.x subnet? If not then your router needs to bridge the two different subnets or you will experience problems trying to connect to the device.
The NAS device host name is MYBOOKWORLD.
You might want to check how the NAS device's IP address is assigned. If dynamically through DHCP then any time the router is rebooted the IP address could change unless the router is configured to reassign the same address or the NAS device is configured to use a static address. The point is once you get the mount command to work manually you likely will want to permanently add the mount in /etc/fstab.
Just a little helper to improve readability in the forums, when copying and pasting text from the command line output, be sure to enclose the text in code tags. Then when the text is posted in the forum the text will retain the same output formatting. Something like this:
Code:
Domain=[WORKGROUP] OS=[Unix] Server=[Samba 3.0.34]
Sharename Type Comment
--------- ---- -------
Public Disk Public Share
Download Disk Download Share
Configuration Disk System Configuration
IPC$ IPC IPC Service (My Book World Edition Network Storage)
Domain=[WORKGROUP] OS=[Unix] Server=[Samba 3.0.34]
Server Comment
--------- -------
MYBOOKWORLD My Book World Edition Network Storage
Workgroup Master
--------- -------
WORKGROUP