|
DB Recovery Size is really small.
It recursively reads the OPF files (not the book) and links the image, about 20KB per book. tiny
Make sure your external drive has enough power (many come with a second USB (power only) plug on the cable.) Plug direct into the PC .
IF YOU MUST use a USB Hub, make sure that it is powered by a wall wort of 2A or greater (each port is rated at 1/2 A).
Avoid using another High data device on that hub (another Drive, USB video adapter...) The PC port has to handle all that traffic and share cycles with other ports
|