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Re: dd: error reading '/dev/sr0': Input/output error




Le 10/12/2018 à 06:34, md a écrit :

MD> sudo dd if=/dev/sr0 of=/sdb1/movie.iso
32596480 bytes (33 MB, 31 MiB) copied, 7.00018 s, 4.7 MB/s
dd: error reading '/dev/sr0': Input/output error
(...)
MD> dvdbackup -M
libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient
libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000142

Didn't these messages about CSS keys ring a bell in anybody's mind ?

Looks like it is a video DVD protected with CSS. The DVD drive must be unlocked first or will issue read errors on some protected sectors.
Check the kernel logs with dmesg.