ZIP64 (choose your flavor)

[Jim Peterson]

>>@Jim Peterson - there seems to be no license-required statement with
regard
>>to level 1 ZIP 64 provisions in APP NOTE 6.2.0.  Is there anything
different
>>in later APP NOTE editions?  Where should we look in the APP NOTEs and
other
>>materials on the PKWare site for resolution of questions like this?

No changes have been made to version 1 capabilities for this feature.
PKWARE does maintain all of the usual contact points and links on our
website.  Specific contact information can be found for the APPNOTE at
www.pkware.com/appnote.  Within the APPNOTE, readers are directed to
this same contact path for questions, comments, etc...


-----Original Message-----
From: Dennis E. Hamilton [mailto:dennis.hamilton at acm.org] 
Sent: Tuesday, November 02, 2010 11:39 AM
To: 'MURATA Makoto (FAMILY Given)'; 'ISO Zip'
Cc: Jim Peterson
Subject: RE: ZIP64 (choose your flavor)

I believe there are two levels to the ZIP64 provisions, according to the
6.2.0 APP NOTE.  Is level 1 (not involving central directory
signing/encryption) sufficient for EPUB ?  That would deal with packages
greater than 2GB and the need to have sizes and (relative) pointers
greater
than 32 bits for use in local and central directory entries.

I believe that we all want this aspect of ZIP64 for use in any profile
that
may involve large-document packages.  [I assume OPC needed at least that
much as well, since it supports ultra-large final-form documents for XPS
support of extreme-performance publishing systems.  Adobe use of Zip
packages for final-form publication materials would doubtless have
similar
requirements.]

@Jim Peterson - there seems to be no license-required statement with
regard
to level 1 ZIP 64 provisions in APP NOTE 6.2.0.  Is there anything
different
in later APP NOTE editions?  Where should we look in the APP NOTEs and
other
materials on the PKWare site for resolution of questions like this?

 - Dennis

-----Original Message-----
From: sc34wg1study-bounces at vse.cz [mailto:sc34wg1study-bounces at vse.cz]
On
Behalf Of MURATA Makoto (FAMILY Given)
Sent: Tuesday, November 02, 2010 08:56
To: ISO Zip
Subject: Re: ZIP64


> 
> > If I use ZIP64, do I have to pay license fee to PKWARE?
> > Note that EPUB and OOXML use ZIP64. 
> > 
> 
> You are talking to the EPUB group, right?  Maybe ask them and let us
know?

Already did.  They certainly do not want EPUB adopters to be forced to
pay.

Cheers,
Makoto
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