Depois de várias pesquisas, resolvi postar aqui, pra ver se alguém poderia me ajudar!
Tenho várias máquinas com o Ubuntu 16.04 que não reconhece CD mais reconhece DVD (seja dados, musicas ou vídeos).
Segue comandos para ajuda dos mesmos:
carlossilveira@16002L:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda3 during installation
UUID=230167d8-ed57-46d5-9dc7-f03742eec924 / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=0a762f46-97df-4c64-9add-2616326c513f /boot ext4 defaults 0 2
# swap was on /dev/sda2 during installation
UUID=c88e0f9e-479a-4b4c-9c44-5447fdd586e7 none swap sw 0 0
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda3 during installation
UUID=230167d8-ed57-46d5-9dc7-f03742eec924 / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=0a762f46-97df-4c64-9add-2616326c513f /boot ext4 defaults 0 2
# swap was on /dev/sda2 during installation
UUID=c88e0f9e-479a-4b4c-9c44-5447fdd586e7 none swap sw 0 0
carlossilveira@16002L:~$ dmesg | grep sr0
[ 1.903196] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1.903512] sr 1:0:0:0: Attached scsi CD-ROM sr0
carlossilveira@16002L:~$
[ 1.903196] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1.903512] sr 1:0:0:0: Attached scsi CD-ROM sr0
carlossilveira@16002L:~$
carlossilveira@16002L:~$ wodim --devices
wodim: Overview of accessible drives (1 found) :
-------------------------------------------------------------------------
0 dev='/dev/sg1' rwrw-- : 'hp HLDS' 'DVDRW GUD1N'
-------------------------------------------------------------------------
carlossilveira@16002L:~$
wodim: Overview of accessible drives (1 found) :
-------------------------------------------------------------------------
0 dev='/dev/sg1' rwrw-- : 'hp HLDS' 'DVDRW GUD1N'
-------------------------------------------------------------------------
carlossilveira@16002L:~$
carlossilveira@16002L:~$ wodim -scanbus
scsibus0:
0,0,0 0) 'ATA ' 'ST31000524AS ' 'JC4A' Disk
0,1,0 1) *
0,2,0 2) *
0,3,0 3) *
0,4,0 4) *
0,5,0 5) *
0,6,0 6) *
0,7,0 7) *
scsibus1:
1,0,0 100) 'hp HLDS ' 'DVDRW GUD1N ' 'LD02' Removable CD-ROM
1,1,0 101) *
1,2,0 102) *
1,3,0 103) *
1,4,0 104) *
1,5,0 105) *
1,6,0 106) *
1,7,0 107) *
carlossilveira@16002L:~$
scsibus0:
0,0,0 0) 'ATA ' 'ST31000524AS ' 'JC4A' Disk
0,1,0 1) *
0,2,0 2) *
0,3,0 3) *
0,4,0 4) *
0,5,0 5) *
0,6,0 6) *
0,7,0 7) *
scsibus1:
1,0,0 100) 'hp HLDS ' 'DVDRW GUD1N ' 'LD02' Removable CD-ROM
1,1,0 101) *
1,2,0 102) *
1,3,0 103) *
1,4,0 104) *
1,5,0 105) *
1,6,0 106) *
1,7,0 107) *
carlossilveira@16002L:~$
carlossilveira@16002L:~$ dmesg | grep -A8 CD-ROM
[ 1.875164] scsi 1:0:0:0: CD-ROM hp HLDS DVDRW GUD1N LD02 PQ: 0 ANSI: 5
[ 1.903196] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1.903198] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 1.903512] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 1.903621] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 2.017394] usb 1-13: new full-speed USB device number 4 using xhci_hcd
[ 2.147551] usb 1-13: New USB device found, idVendor=8087, idProduct=0a2a
[ 2.147553] usb 1-13: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.152962] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.166003] usbcore: registered new interface driver usbhid
[ 2.166004] usbhid: USB HID core driver
[ 2.169398] input: CHICONY USB NetVista Full Width Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:04B3:3025.0001/input/input7
carlossilveira@16002L:~$
[ 1.875164] scsi 1:0:0:0: CD-ROM hp HLDS DVDRW GUD1N LD02 PQ: 0 ANSI: 5
[ 1.903196] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1.903198] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 1.903512] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 1.903621] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 2.017394] usb 1-13: new full-speed USB device number 4 using xhci_hcd
[ 2.147551] usb 1-13: New USB device found, idVendor=8087, idProduct=0a2a
[ 2.147553] usb 1-13: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.152962] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.166003] usbcore: registered new interface driver usbhid
[ 2.166004] usbhid: USB HID core driver
[ 2.169398] input: CHICONY USB NetVista Full Width Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:04B3:3025.0001/input/input7
carlossilveira@16002L:~$