I just acquired a My Book World Edition 1TB today.
I copied a 2.31GB video file from the local 500GB SATA drive to WD My Book, connected on router, by using the Windows XP Windows Explorer. It took 2 minutes and 28 seconds. The speed is about 160Mbps=19MB.
The same 2.31GB file copied between two PCs on LAN was only 41 seconds.
WD My Book is a 10/100/1000 NAS. Is this speed slow compared to other NASs?