For sequential data the MyBook read/writes at 90MB+... it is a very good external drive. SATA speeds for many internal drives are similar.
Another quote from PC mag, about some top WD SSD's & HDD's.
"In AS-SSD, the Western Digital Black 4TB hit 123MBps sequential read and 141MBps sequential write. That's 23% and 51% faster than the Caviar Black 1TB, at 100MBps and 93MBps, respectively. The VelociRaptor was faster on both counts, at 201MBps read, and 187MBps write. The read speed difference is particularly interesting given that the VelociRaptor's rotational velocity is only 38% faster than the Black 4TB's 7,200rpm."
and from the Article I quoted before
"WD promises "ultrafast transfer rates" with the My Book, and it delivered just that during our tests. Writing a single 3.49GB file from our testbed to the My Book took just 37 seconds for a 97 MBps sequential write speed."
Personally, I remember waiting 20+ minutes for a tape to load 1200kb applications.
Edited by TsVk!, 09 January 2015 - 02:42 AM.