Re: Announcing cdrskin-0.7.2
"D. Hugh Redelmeier" <hugh@mimosa.com> wrote:
> I am not a mathematician.
>
> I'd guess that this is really GF(2^8). GF stands for Gallois Field.
> Gallois Fields have size p^m where p is a prime (in our case, 2).
>
> Ahh. The standard confirms this:
> http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-130.pdf
I am not shure whether you know that you are responding to a social problem.
There is no need for a new implementation as there is a fast and and reliable OSS
implementation that uses a license that is compatible with any other license.
The Problem is however, that Thomas is not willing to name the fact that he did
take an implementation from someone else and that he is not willing to name the
author (Heiko Eißfeldt) of this implementation. Heiko did make the first
publically available implementation of a CD raw sector encoder 10 years ago
and this did take a lot of time using the public information from 1999. Heiko
did not only implement an encoder but also a "decoder" (a piece of software
that corrects read errors from data with Reed Solomon FEC). Both libraries
are available for anyone as part of the cdrtools project.
Thomas before did take an old implementation from the same author that was not
made available under a OSS license instead of taking a recent version that is
under a OSS license that is compatible with any other OSS project and that is
even aprox. 10x faster than the old implementation.
I am not sure about the background for his behavior......
Jörg
--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni)
joerg.schilling@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily
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