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Burst errors include those due to disc material (defects of aluminum reflecting film, poor reflective index of transparent disc material), disc production (faults during disc forming and disc cutting etc.), disc handling (scratches – generally thin, radial and orthogonal to direction of recording) and variations in play-back mechanism.
A checksum of a message is a modular arithmetic sum of message code words of a fixed word length (e.g., byte values). The sum may be negated by means of a ones'-complement operation prior to transmission to detect unintentional all-zero messages.
Program execution; General concepts; Code; Translation. Compiler. Compile time; Optimizing compiler; Intermediate representation (IR); Execution. Runtime system. Runtime
ISO images can be created from optical discs by disk imaging software, or from a collection of files by optical disc authoring software, or from a different disk image file by means of conversion. Software distributed on bootable discs is often available for download in ISO image format; like any other ISO image, it may be written to an optical ...
The simplest error-detection system, the parity bit, is in fact a 1-bit CRC: it uses the generator polynomial x + 1 (two terms), [5] and has the name CRC-1. Application [ edit ]
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BlindWrite, the successor to BlindRead, is a computer program that writes to recordable CDs.The Blindread software, which reads CDs and writes CD image files, has been discontinued as a separately released product, but BlindRead's code is included in the newer BlindWrite suite of software that also code to control [clarification needed] CD writers.
Deep-space concatenated coding system. [8] Notation: RS(255, 223) + CC ("constraint length" = 7, code rate = 1/2). One significant application of Reed–Solomon coding was to encode the digital pictures sent back by the Voyager program.