Sony MZ-R30 What is MD?, Optional accessories, How MiniDisc works, 34-EN, Premastered MDs

Models: MZ-R30

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Optional accessories

Lithium ion rechargeable battery LIP-12 Micro plug adaptor (Stereo mini plug n Micro plug) PC-MP1HG

Optical Cable

POC-151HG, POC-152HG, POC-MZ1, POC-MZ2, POC-15B, POC-15AB, POC- DA12S

Line Cable RK-G129, RK-G136

Car Connecting Pack CPA-9

Car Battery Cord DCC-E260

Stereo Microphones ECM-MS907, ECM- 909A, ECM-717

Stereo Headphones MDR-D77, MDR-D55 Active Speakers SRS-A41, SRS-A91 Recordable MDs MDW-74/74A, MDW-74L/ 74R/74Y, MDW-60/60A

MiniDisc Carrying Case CK-MD4 MiniDisc Filing Box CK-MD10

Your dealer may not handle some of the above listed accessories. Please ask the dealer for detailed information about the accessories in your country.

US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

Design and specifications are subject to change without notice.

What is MD?

How MiniDisc works

MiniDisc (MD) comes in two types: premastered (prerecorded) and recordable (blank). Premastered MDs, recorded at music studios, can be played back almost endlessly. However, they can't be recorded on or over like cassette tapes. To record, you must use a "recordable MD".

Premastered MDs

Premastered MDs are recorded and played like regular CDs. A laser beam focuses on the pits in the surface of the MD and reflects the information back to the lens in the recorder. The recorder then decodes the signals and plays them back as music.

Recordable MDs

Recordable MDs, which use magneto- optical (MO) technology, can be recorded again and again. The laser inside the recorder applies heat to the MD, demagnetizing the magnetic layer of the MD. The recorder then applies a magnetic field to the layer. This magnetic field corresponds exactly to the audio signals generated by the connected source. (The north and south polarities equate to digital "1" and "0".) The demagnetized MD adopts the polarity of the magnetic field, resulting in a recorded MD.

34-EN

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Sony MZ-R30 What is MD?, Optional accessories, How MiniDisc works, 34-EN, Premastered MDs, Recordable MDs