Every now and then, you’re going to need some technical info about your optical disc (CD or DVD) drive. For example, if you’re using a command like that outlined in Fix “Cannot find input plugin for MRL [dvd:/]” Error in Kaffeine, MPlayer & Other Media Players in Ubuntu, being sudo ln -s /media/cdrom0 /dev/dvd, it will be useless if /media/cdrom0 is not the actual mount point. Often I see in forums people complaining a command couldn’t find the disc drive, but the command would work if the correct mount point was specified (they’re not universal, which I think many people expect them to be).
But finding out the mount point of your CD or DVD drive is actually quite easy: insert a disc, wait for it to be mounted, and when a folder window opens to the drive automatically (if it doesn’t, open it manually), simply note the path/address in the Location bar! Yes, it’s that easy, since the location won’t be the disc’s label, but the mount point on your system.
Another way to do it is simply browse through the subfolders in /media (or could even be /mnt on older systems) until you find the one that shows your disc (you’ll need to have one in the drive, of course).
Or if you want to do it via the terminal, you can use mount|grep ^'/dev' which will display info as follows:
/dev/sda2 on / type ext3 (rw,relatime,errors=remount-ro)
/dev/sda1 on /media/Windows-XP-x64 type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)
/dev/sr0 on /media/cdrom0 type iso9660 (ro,nosuid,nodev,user=ozzman)
In this case, /dev/sr0 is the device path, and /media/cdrom0 is the mount point, so if you ever come across a command for your disc drive where the mount point is specified as (for example) /media/disk1, you can pretty much expect it not to work, but at least you know that you can replace the incorrect value with /media/cdrom0 (or whatever your mount point actually is).
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