Mini-CD

The mini- CD is a smaller format of the standard CD and also in their various standards ( CD-R/CD-RW ) available. It has a diameter of 8 cm. Customary capacities are 210MB (23 minutes), 185 MB ( 21 minutes) or less. In most CD players today depressions are designed to play. There used commercially available adapter rings for these CDs. Mini - CDs and their special formats can not be played on most CD changers and slot-in drives.

Marketing

In the late 1980s, the music industry went on to publish even singles on CD. Some record companies sat there for a while on the mini - CD, which has approximately the season playing with a 45/min 12 " vinyl single. Audience were also users of CD Walkman ( Discman ).

Recently there was an attempt to market Singles in mini - CD format, on the German market in the years 2003 to 2005 under the name Pock it. The release of this CD was a joint venture of two major labels Sony Music and Universal Music. Almost all commercially successful singles that appeared at this time in Germany, were published as Pock -It version. These versions still contained only two tracks. From the buyers these CDs were only moderately accepted, so they largely disappeared from the market from 2005.

Special formats

A special form is the business card CD (or Business Card CD), which is pruned to two or four pages on the size of a business card. It is often used for promotional purposes. Such a CD has depending on the manufacturer a capacity of 20 to 50 MB. There are also special formats with 100 MB. In contrast, the so-called " card.21 " 30 MB is produced already in the injection molding process without milling.

Another special form of the free-form shape CDs or CDs. The CD is brought by appropriately cropping in almost any form. Such discs should not be played in fast CD players, because they often do not "round", ie run with unbalance and therefore may cause damage.