Major problems with USB Mass-Storage device

Here are some additional errors. Again, I can read the DVD successfully in a DVD-ROM drive.

Buffer I/O error on device sr0, logical block 2086686 Buffer I/O error on device sr0, logical block 2086687 Buffer I/O error on device sr0, logical block 2086688 Buffer I/O error on device sr0, logical block 2086689 Buffer I/O error on device sr0, logical block 2086690 Buffer I/O error on device sr0, logical block 2086691 Buffer I/O error on device sr0, logical block 2086692 Buffer I/O error on device sr0, logical block 2086693 Buffer I/O error on device sr0, logical block 2086694 Buffer I/O error on device sr0, logical block 2086695 Buffer I/O error on device sr0, logical block 2086696 Buffer I/O error on device sr0, logical block 2086697 Buffer I/O error on device sr0, logical block 2086698 Buffer I/O error on device sr0, logical block 2086699 Buffer I/O error on device sr0, logical block 2086700 Buffer I/O error on device sr0, logical block 2086701 Buffer I/O error on device sr0, logical block 2086702 Buffer I/O error on device sr0, logical block 2086703 Buffer I/O error on device sr0, logical block 2086704 Buffer I/O error on device sr0, logical block 2086705 Buffer I/O error on device sr0, logical block 2086706 Buffer I/O error on device sr0, logical block 2086707 Buffer I/O error on device sr0, logical block 2086708 Buffer I/O error on device sr0, logical block 2086709 Buffer I/O error on device sr0, logical block 2086710 Buffer I/O error on device sr0, logical block 2086711 Buffer I/O error on device sr0, logical block 2086712 Buffer I/O error on device sr0, logical block 2086713 Buffer I/O error on device sr0, logical block 2086714 Buffer I/O error on device sr0, logical block 2086715 Buffer I/O error on device sr0, logical block 2086716 Buffer I/O error on device sr0, logical block 2086717 Buffer I/O error on device sr0, logical block 2086718 Buffer I/O error on device sr0, logical block 2086719 Buffer I/O error on device sr0, logical block 2086720 Buffer I/O error on device sr0, logical block 2086721 Buffer I/O error on device sr0, logical block 2086722 Buffer I/O error on device sr0, logical block 2086723 Buffer I/O error on device sr0, logical block 2086724 Buffer I/O error on device sr0, logical block 2086725 Buffer I/O error on device sr0, logical block 2086726 Buffer I/O error on device sr0, logical block 2086727 Buffer I/O error on device sr0, logical block 2086728 Buffer I/O error on device sr0, logical block 2086729 Buffer I/O error on device sr0, logical block 2086730 Buffer I/O error on device sr0, logical block 2086731 Buffer I/O error on device sr0, logical block 2086732 Buffer I/O error on device sr0, logical block 2086733 Buffer I/O error on device sr0, logical block 2086734 Buffer I/O error on device sr0, logical block 2086735 Buffer I/O error on device sr0, logical block 2086736 Buffer I/O error on device sr0, logical block 2086737 Buffer I/O error on device sr0, logical block 2086686 Buffer I/O error on device sr0, logical block 2086687