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Re: [gNewSense-users] Is ZIP a free file format?
From: |
Luis Felipe Lopez Acevedo |
Subject: |
Re: [gNewSense-users] Is ZIP a free file format? |
Date: |
Thu, 27 Aug 2009 14:09:00 -0500 |
El jue, 27-08-2009 a las 20:32 +0200, Sam Geeraerts escribió:
> Luis Felipe Lopez Acevedo schreef:
> > El mié, 26-08-2009 a las 22:22 -0300, Victor Cortiano escribió:
> >> ZIP is fully documented since its creation, despite the first
> >> implementation (PKZIP) being proprietary software.
> >
> > Where can I find that documentation? I only found a specification that I
> > think is not free[1].
> >
> > 1. http://www.pkware.com/support/zip-application-note
>
> It looks like that specification (more precisely [1]) is the full
> documentation. But fully documented is not the same as free.
>
> The spec is published under plain old copyright, so unauthorized copying
> is not allowed. That is at least annoying. But the bigger problem is
> section X of the spec, which says that the implementation of certain
> parts of it requires a license. However, I fail to see on what grounds
> this requirement is based, as the spec doesn't refer to any patents.
>
That's the part I don't like.
> So I think we can say that it's not completely free. Free software that
> uses it (IceCat, OpenOffice.org, OpenJDK) probably only implements the
> "safe" parts.
>
> [1] http://www.pkware.com/documents/casestudies/APPNOTE.TXT
>
I'll go to read about gzip instead.
Thanks.
- [gNewSense-users] Is ZIP a free file format?, Luis Felipe Lopez Acevedo, 2009/08/26
- Re: [gNewSense-users] Is ZIP a free file format?, Graziano Sorbaioli, 2009/08/26
- Re: [gNewSense-users] Is ZIP a free file format?, Victor Cortiano, 2009/08/26
- Re: [gNewSense-users] Is ZIP a free file format?,
Luis Felipe Lopez Acevedo <=
- Re: [gNewSense-users] Is ZIP a free file format?, Victor Cortiano, 2009/08/27
- Re: [gNewSense-users] Is ZIP a free file format?, list, 2009/08/28
- Re: [gNewSense-users] Is ZIP a free file format?, Luis Felipe Lopez Acevedo, 2009/08/28
- [gNewSense-users] Re: Is ZIP a free file format?, Yavor Doganov, 2009/08/28
Re: [gNewSense-users] Is ZIP a free file format?, Luis Felipe Lopez Acevedo, 2009/08/27
Re: [gNewSense-users] Is ZIP a free file format?, Victor Cortiano, 2009/08/26