How to speed up CD/DVD-ROM in Ubuntu!

Do you want to make sure you are getting the best speed possible from you CD/DVD-ROM?

Assumed that /dev/cdrom is the location of CD/DVD-ROM

First open a terminal window and type:

sudo hdparm -d1 /dev/cdrom

sudo cp /etc/hdparm.conf /etc/hdparm.conf_backup

sudo gedit /etc/hdparm.conf

Append the following lines at the end of file

/dev/cdrom {
dma = on
}

Save the edited file

Done