TDK Products from SRTL
TDK MD-RXG80 MiniDiscs
With its digital high-end series, TDK offers a digital audio recording media especially designed for hi-fi enthusiasts. This product offers a superior standard of quality to ensure the best possible sound and flawless reliability with today's digital audio systems.

Disc substrate of excellent mechanical and optical characteristics.

Specially selected materials have been utilised in the manufacture of TDK's MD-RXG. Combined with TDK's precision manufacturing process, the result is a disc substrate with superb optical and mechanical characteristics, when compared to a standard grade MiniDisc. These properties form the basis of a recording medium with the lowest error rate, flawless reliability and a long service life. Features you would expect from a recording medium designed for high-end hi-fi users.

Precision-sputtered layers ensure low error rate and long service life.

The recording layer, dielectric layers and reflective layer of TDK's MD-RXG are coated onto the substrate by a high precision sputtering process. This ensures a high carrier to noise ratio, optimum sensitivity and the lowest possible error rate. The resulting effect is superb sound reproduction with a service life of over a million times recording and playback.

Optimum protection of disc through high-rigidity shell.

TDK's MD-RXG features a super precision shell manufactured from a heat and shock resistant plastic material which protects the disc from adverse environmental effects. The shell construction ensures excellent durability and reliability in a variety of demanding applications under all conditions, indoors and out

Technical Specifications.

Item
MD-RXG 74
Basic specifications
Recording/Playback Time 74 minutes
Recording method magnetic field modulation
Frequency range 5 Hz - 20 kHz
Dynamic range 105 dB
Physical properties
Disc / centre hole d'iameter 64 / 11 mm
Thickness of substrate 1.2 mm
Vertical acceleration <10 m/s2
Radial runout < 60 um p-p
Radial acceleration 1.0 m/s2
Optical retardation 40 nm
Baseline reflectance 22%
Cartridge size 68x72x5 mm
Format characteristics
Track pitch 1.6 um
Scanning velocity 1.4 m/s (74 min)
Pit signal modulation > 0. 1 5 (I3/Itop)
Radial contrast on groove area 0.20 - 0.35
Push-pull signal on groove area 0.11 - 0.20
Normalised wobble signal 0.035 - 0.050
ADIP error rate < 3%
MO signal characteristics
Nominal recording power 4.6 mW
Minimum required magnetic field > 8.0 k/m (100 Oe)
Carrier-to-noise ratio > 46 dB
MO signal modulation 0.03 - 0.08 (13/Isium)
Jitter < 40 ns
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