Features

The DSR-85/85P is a 1/4-inch digital video cassette recorder that uses the DVCAM digital recording format. This system achieves stable, superb picture quality by digitally processing video signals that are separated into color difference signals and luminance signals (component method).

The DSR-85/85P unit is equipped with the variety of functions that are needed for videocassette recorders and players used in professional digital video editing systems. It features a high-speed transfer function for digital data and supports the ClipLink™ function developed by Sony Corporation for highly efficient video editing. When connected to a Sony EditStation™, the unit serves as part of a powerful non-linear editing system1).

The unit is also equipped with a full-fledged analog interface to support hybrid systems that combine conventional analog equipment with digital equipment.

The DSR-85/85P’s main features are described below.

Wide track pitch

The recording track pitch is 15 µm, fully 50 percent wider than the DV format’s 10-µm track pitch. Thanks to this feature, the DVCAM format sufficiently meets the reliability and precision requirements of professional editing.

High-quality PCM digital audio

PCM recording makes for a wide dynamic range and a high signal-to-noise ratio, thereby enhancing sound quality.

There are two recording modes: 2-channel mode (48- kHz sampling and 16-bit quantization), which offers sound quality equivalent to the DAT (Digital Audio Tape) format, or 4-channel mode (32-kHz sampling and 12-bit quantization).

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DVCAM Format

DVCAM is based on the consumer DV format, which uses the 4:1:1 component digital format, and provides a 1/4-inch digital recording format for professional use.

Playback compatibility with DV format

A DV cassette recorded on a DV-format VCR can be played back on this unit. (Cassettes recorded in LP mode cannot be played back.)

High picture quality, high stability

Video signals are separated into color difference signals and luminance signals, which are encoded and compressed to one-fifth size before being recorded to ensure stable and superb picture quality.

Because the recording is digital, multi-generation dubbing can be performed with virtually no deterioration of quality.

Choice of two cassette sizes

The unit can use both standard-size and mini-size DVCAM cassettes.

•According to cassette size, it automatically changes the position of the reel drive plate.

•The maximum recording/playback times are 184 minutes for standard size cassettes and 40 minutes for mini-size cassettes.

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1)Non-linear editing

This is an editing method that uses video and audio signals that have been digitally encoded and recorded on a hard disk as digital data. When compared with conventional (linear) editing methods, non-linear editing offers vastly improved efficiency in editing operations, such as by eliminating tape transport time.

Chapter 1 Overview

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