Mini CD

Mini CDs are often used to deliver small amounts of software, such as device drivers.

A Mini Cd in the shape of a business card

A Mini CD is the second and latest type of CD that is of smaller size, usually 8 cm, instead of 12 cm at the first CD type. Mini CD can hold less data, about 210 Megabytes, or 24 minutes of music. There is also a version which can only hold 155 MB of data, or 18 minutes of music. Mini CD and CD can also come in different sizes, such as a hart shape, a bussines cards,... that can hold between 10 MB and 100 MB of data that are called shaped CD (https://en.wikipedia.org/wiki/Shaped_compact_disc).