Q: How to speed up CD/DVD-ROM?

1. Read General Notes

2. e.g. Assumed that /dev/cdrom is the location of CD/DVD-ROM

3. sudo hdparm -d1 /dev/cdrom
   sudo cp /etc/hdparm.conf /etc/hdparm.conf_backup
   sudo gedit /etc/hdparm.conf

4. Append the following lines at the end of file

   /dev/cdrom {
          dma = on
   }

5. Save the edited file (sample)