arya@arya-theStarks:~$ lsblk
NAME                           MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
sda                              8:0    0 465.8G  0 disk  
├─sda1                           8:1    0   243M  0 part  /boot
├─sda2                           8:2    0     1K  0 part  
└─sda5                           8:5    0 465.5G  0 part  
  └─sda5_crypt (dm-0)          252:0    0 465.5G  0 crypt 
    ├─ubuntu--vg-root (dm-1)   252:1    0 461.7G  0 lvm   /
    └─ubuntu--vg-swap_1 (dm-2) 252:2    0   3.8G  0 lvm   
sdb                              8:16   1   7.5G  0 disk  
└─sdb1                           8:17   1   7.5G  0 part  
sr0                             11:0    1 700.6M  0 rom   
arya@arya-theStarks:~$ dmesg | egrep -i --color 'cdrom|dvd|cd/rw|writer'
[    1.637794] ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-L633J, D200, max UDMA/100
[    1.655794] scsi 1:0:0:0: CD-ROM            TSSTcorp DVD+-RW TS-L633J D200 PQ: 0 ANSI: 5
[    1.671360] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[    1.671365] cdrom: Uniform CD-ROM driver Revision: 3.20