BS EN 61909:2000

1 General
2 Disc specification
3 Optical stylus
4 Cartridge
5 Address
6 Pregroove modulation (valid only for recordable MD)
7 EFM modulation
8 ACIRC error correction system
9 Sector data structure
10 Audio data
11 Data organization
12 Serial copy management system
13 Shock proof memory system
14 Application rules
Annex A (informative) Recommendations and clarifications for
                     the MD system
      A.1 - Principles of operation
      A.2 - Measurement of the disc reflectivity
      A.3 - Measurement of the optical disc unbalance
      A.4 - Measurement of the groove wobble amplitude
      A.5 - Beat of wobble and groove geometry
      A.6 - Environment operating and storage conditions
      A.7 - Measurement of the optimum recording power Po
      A.8 - Measurement of jitter and signal frequency time
            errors
      A.9 - Local defects
      A.10 - Burst errors
      A.11 - Push-pull tracking signal
      A.12 - Noise in push-pull tracking signal
      A.13 - Diagauges for center hole on the disc
      A.14 - Compliance test of the MD cartridge
      A.15 - Area for braille
      A.16 - Long shutter
      A.17 - Extended volume and bend of cartridge
      A.18 - Definition of air cleanliness
      A.19 - Test of impact durability (recordable disc only)
      A.20 - Measurement of the friction force
      A.21 - Label area
      A.22 - Wobble signal leakage into Isum
Figure 1 - Layout of the MD
Figure 2 - MiniDisc possible profile
Figure 3 - HF signal
Figure 4 - Spectral components of the time error versus the
           maximum allowed time error due to mastering or
           recording
Figure 5 - Typical shape of the error signal for tracking
           versus radial position
Figure 6 - Open-loop transfer function of the radial serve
           for an MD-recorder
Figure 7 - Open-loop transfer function of the radial servo
           for tracking measurement
Figure 8 - Operating conditions
Figure 9 - Roughness and irregularity (recordable disc only)
Figure 10 - Optical stylus
Figure 11 - MD cartridge specifications for the premastered
            version
Figure 12 - MD cartridge specifications for the recordable
            version
Figure 13 - Maximum existing area of the disc
Figure 14 - ADIP encoder block diagram
Figure 15 - MD encoding/decoding system (main channel)
Figure 16 - ACIRC encoder (add-on de-interleave + encoder)
Figure 17 - Integrated ACIRC encoder
Figure 18 - ACIRC decoder (CIRC decoder + add-on interleave)
Figure 19 - Integrated ACIRC decoder
Figure 20 - Relation between 16 bit samples and data bytes
Figure 21 - Layout of a data block
Figure 22 - Scrambler structure
Figure 23 - Layout of the sync field
Figure 24 - Layout of the header field
Figure 25 - Sector construction of MD
Figure 28 - Sector structure of MD (general)
Figure 29 - Sector structure of MD (programme area)
Figure 30 - Sector structure of MD (TOC sector = 0
            (mandatory))
Figure 31 - Sector structure of MD (TOC sector = 1 (option))
Figure 32 - Sector structure of MD (TOC sector = 2 (option))
Figure 33 - Sector structure of MD (TOC sector = 3 (option))
Figure 34 - Sector structure of MD (TOC sector = 4 (option))
Figure 35 - Sector structure of MD (UTOC sector = 0
            (mandatory))
Figure 36 - Sector structure of MD (UTOC sector = 1 (option))
Figure 37 - Sector structure of MD (UTOC sector = 2 (option))
Figure 38 - Sector structure of MD (UTOC sector = 4 (option))
Figure 39 - Mapping of JIS code to shifted JIS
Figure 40 - Example of transformation rule
Figure A.1 - Schematic set-up for reflectivity measurements
Figure A.2 - Unbalance versus read out time in a recordable
             MD system
Figure A.3 - Radial error signal
Figure A.4 - Groove wobble
Figure A.5 - Grooves "in phase"
Figure A.6 - Grooves "out of phase"
Figure A.7 - Groove geometry
Figure A.8 - ATER and BLER windows for a wide and deep groove
Figure A.9 - ATER and BLER windows for a narrow and shallow
             groove
Figure A.10 - Cyclic climatic test
Figure A.11 - Recording power (mW) versus block error rate
Figure A.12 - Examples of time errors
Figure A.13 - Diagauge
Figure A.14 - Disc base
Figure A.15 - Measurement method
Figure A.16 - Test gauge
Figure A.17 - Test method (4-forces)
Figure A.18 - Test method (3-forces)
Figure A.19 - The area for braille
Figure A.20 - Extended volume and bend of cartridge
Figure A.21 - Number of particles
Figure A.22 - Test of impact durability
Figure A.23 - Arrangement of head and disc for the
              measurement of friction force
Figure A.24 - Label area
Figure A.25 - Wobble signal leakage
Table 1 - ASCII - Code table
Table 2 - 6 bit format
Table 3 - Modified ISO 8859-1 code table for the minidisc
          system
Table 4 - JIS code table for minidisc system (see JISX0208
          except for MD external characters in Table 5)
Table 5 - Contents of MD external characters
Table 6 - Caption of illustrated characters
Table 7 - The translation between the Roman alphabet and
          Japanese katakana
Table 8 - Recording rule

Applies to the MiniDisc (MD). Defines electrical and mechanical characteristics necessary to ensure interchangeability of both optical and premastered discs and recordable magneto-optical discs of 64mm diameter for the compressed digital audio recording system.

Defines the mechanical and electrical characteristics necessary to ensure the interchangeability of both premastered optical discs and recordable magneto-optical discs of 64 mm diameter, known as the MiniDisc system.