elisa@EMG:~$ sudo mount -t udf /dev/sr0 /cdrom
[sudo] password for elisa:
mount: dispositivo de bloques /dev/sr0 está protegido contra escritura; se monta como sólo lectura
^[[Amount: wrong fs type, bad option, bad superblock on /dev/sr0,
       missing codepage or helper program, or other error
       En algunos casos se encuentra información en syslog, pruebe
   dmesg | tail   o algo parecido



elisa@EMG:~$ dmesg | tail
[  354.671657] sr 0:0:1:0: [sr0] CDB: Read(10): 28 00 00 02 77 5f 00 00 01 00
[  354.671673] end_request: I/O error, dev sr0, sector 646524
[  354.671790] udf: udf_read_inode(ino 161631) failed !bh
[  357.978449] sr 0:0:1:0: [sr0] Unhandled sense code
[  357.978458] sr 0:0:1:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  357.978465] sr 0:0:1:0: [sr0] Sense Key : Medium Error [current]
[  357.978474] sr 0:0:1:0: [sr0] Add. Sense: L-EC uncorrectable error
[  357.978483] sr 0:0:1:0: [sr0] CDB: Read(10): 28 00 00 02 77 5e 00 00 01 00
[  357.978500] end_request: I/O error, dev sr0, sector 646520
[  357.978616] udf: udf_read_inode(ino 161630) failed !bh