Disc
From Tardis Wiki, the free Doctor Who reference
A disc, also called a disk, was a form of technology that could store data. Some types of discs included CDs and DVDs.
History
On 7 March 2006, (TV: World War Three [+]Loading...["World War Three (TV story)"]) the Ninth Doctor gave Mickey Smith a computer virus on a CD disc. (TV: World War Three [+]Loading...["World War Three (TV story)"], PROSE: Hoax This! [+]Loading...["Hoax This! (short story)"], Mickey's Blog [+]Loading...{"page":"176","1":"Mickey's Blog (short story)"})