This miniature optical disc measures 3 inches across and typically holds up to 210 megabytes of data or 24 minutes of audio. It fits into the inner depression of standard tray-loading optical drives but cannot be used in slot-loading mechanisms without an adapter. It was primarily used for promotional software, drivers, and CD singles.
Heard on the job
The vendor shipped the USB driver on a CD3, but my laptop only has a slot-loading drive.
Also heard as
- mini CD