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edccchk v1.26
=============
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EDC/ECC checker for RAW (2352 bytes/sector) CD images
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Copyright © 2013-2014 Natalia Portillo <claunia@claunia.com>
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Based on ECM v1.03 Copyright © 2002-2011 Neill Corlett
Usage
=====
edccchk <cdimage>
<cdimage> RAW 2352 bytes/sector image of a CD.
Features
========
* Checks EDC and ECC fields consistency of CD sectors.
* Supports Mode 0, Mode 1 and Mode 2 data sectors, ignores Audio sectors.
* Shows failing sectors as MSF.
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Changelog
=========
2013/12/08 v1.00
* Converted ECM code to only check sectors.
* Added support for mode 0 sectors.
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2014/03/02 v1.10
* Corrected handling of mode 2 form 2 sectors with omitted EDC. Side-effect, corrects mode 2 form-less sectors processing.
2014/03/02 v1.11
* Corrected sum of total errors.
2014/03/06 v1.20
* When an error is detected, will tell if the error was detected with ECC P, ECC Q or EDC. Useful to detect EDC/ECC field corruption.
* Shows a warning when mode 2 subheader copies differ. Other tools detect this as an error, but if both ECC and EDC are ok it's intentional.
* Shows summary of total warnings and total errors+warnings.
2014/03/15 v1.25
* Corrected mishandling of end of data. It was checking for a sector on what should be uninitialized memory instead of breaking main loop.
2014/03/16 v1.26
* Corrected counting 1 sector more than real.
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To-Do
=====
* Support RAW+SUB images (2448 bytes/sector)
* Check Q-subchannel CRCs
* Check CD+G CRCs
* Check consistency of P and Q subchannels with sector headers