Optical Drives
An optical drive is a generic term used for DVD, CD & Blu-Ray drives. There are other drives available for legacy standards such as HD-DVD and karaoke disks although it is not recommended to invest in these standards unless you already have a large collection of media.
Thankfully optical drives are one of the easier purchases you can make for your PC. There are only two standards for connecting an internal drive and only three major formats available today making it easy to get the drive you want.