Electronic Shock Protection 8 times over-sampling digital filter: A digital filter which calculates 7 additional samples between the actual samples, which provides a closer representation the original analog signal, and therefore better sound quality. 1-bit D/A converter: A type of digital to analog converter who's output is restricted to only two values. Unlike a multi-bit D/A, in which each bit possess it's own corresponding output voltage, a 1-bit D/A's output voltage is expressed by means of the time axis; I.e. PWM or PDM. Active Servo Control: A proprietary Sony technology for CD and MD players. A circuit which monitors tracking and focus functions, among others, and actively adjusts those functions for optimal performance. UniLink: Sony's proprietary control bus technology incorporating "serial", two-way communication between all components on the bus. Custom File: A feature package that provides intuitive and safe source management for an audio and A/V system. Examples include Disc Memo, Station Memo, and Memo List. Program Play: A Custom File feature that allows the user to define a sequence of 12 tracks, in a specific order, for customized playback. Up to two banks of 12 track sequences can be recalled, for up to 24 tracks total. Memo List: Station titles currently loaded without interrupting playback of the existing. A Custom File feature that allows the user to toggle through the disc or disc or station. CD Text: A compact disc and player feature utilizing disc, track, and artist information encoded directly on the CD media. Both playback and media components must have CD Text compatibility. Fast Change mechanism: A disc changer feature providing superior speed when accessing discs. Super Suspension System: A shock isolation system employing silicon filled shock absorbers, for increased absorption of shock. CD-R/W/MP3 Playback Silver Xplod Design