marybuntu@marybuntu-NV59C:~$ sudo dd if=/home/marybuntu/Downloads/lubuntu-16.04.1-desktop-amd64.iso of=/dev/sdb
[sudo] password for marybuntu: 
dd: error reading ‘/home/marybuntu/Downloads/lubuntu-16.04.1-desktop-amd64.iso’: Input/output error
379416+0 records in
379416+0 records out
194260992 bytes (194 MB) copied, 116.285 s, 1.7 MB/s
marybuntu@marybuntu-NV59C:~$ dmesg | tail -n 30
[  411.639777] ata1: EH complete
[  417.965786] ata1.00: exception Emask 0x0 SAct 0x30 SErr 0x0 action 0x0
[  417.965793] ata1.00: irq_stat 0x40000001
[  417.965798] ata1.00: failed command: READ FPDMA QUEUED
[  417.965806] ata1.00: cmd 60/08:20:18:52:6f/00:00:00:00:00/40 tag 4 ncq 4096 in
[  417.965806]          res 41/40:00:18:52:6f/00:00:00:00:00/40 Emask 0x409 (media error) <F>
[  417.965810] ata1.00: status: { DRDY ERR }
[  417.965813] ata1.00: error: { UNC }
[  417.965816] ata1.00: failed command: WRITE FPDMA QUEUED
[  417.965822] ata1.00: cmd 61/18:28:38:76:c4/00:00:1c:00:00/40 tag 5 ncq 12288 out
[  417.965822]          res 41/40:00:1f:52:6f/00:00:00:00:00/40 Emask 0x9 (media error)
[  417.965826] ata1.00: status: { DRDY ERR }
[  417.965828] ata1.00: error: { UNC }
[  417.972972] ata1.00: configured for UDMA/133
[  417.972991] sd 0:0:0:0: [sda] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  417.973018] sd 0:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
[  417.973027] sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
[  417.973031] sd 0:0:0:0: [sda] CDB: 
[  417.973034] Read(10): 28 00 00 6f 52 18 00 00 08 00
[  417.973054] blk_update_request: I/O error, dev sda, sector 7295512
[  417.973081] sd 0:0:0:0: [sda] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[  417.973087] sd 0:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
[  417.973090] sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
[  417.973092] sd 0:0:0:0: [sda] CDB: 
[  417.973093] Write(10): 2a 00 1c c4 76 38 00 00 18 00
[  417.973100] blk_update_request: I/O error, dev sda, sector 482637368
[  417.973114] ata1: EH complete
[  417.973119] Aborting journal on device sda1-8.
[  417.973131] EXT4-fs error (device sda1) in ext4_reserve_inode_write:4737: Journal has aborted
[  417.973544] EXT4-fs (sda1): Remounting filesystem read-only
marybuntu@marybuntu-NV59C:~$