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July 2007
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2007.07.02 14:22 "Re: BigTIFF extension issue", by Frank Warmerdam
Bob Friesenhahn wrote: > Way back in 2004 there was a long discussion of what extension to use > for BigTIFF (see http://www.asmail.be/msg0055326857.html). Re-reading > this discussion, I see a lot of good points, but don't see any obvious > conclusion. It seems like a case of allowing the market/users to decide. > > I have started to update my application to support BigTIFF. I am happy > to support the extension ".tiff" but of course there are other > proposals. Initially, it does not seem like anyone will be casually > writing BigTIFF files since Classic TIFF (TM) provides assured coverage > to at least 2GB file sizes (and often 4GB) and users of large files know > who they are and will explicitly decide to use BigTIFF. This means that > it will take time before BigTIFF files are encountered in "the wild". > > Given the state of the computing universe, does anyone care about three > character file extensions any more? Are there systems still in use > (reasonably expected to encounter a BigTIFF file) which make their > format decisions based on a three character extension, or is this > behavior now effectively extinct? Bob, I am supportive of using the same extension for BigTIFF as for tiff, for the many reasons stated by others. I also discourage applications putting much emphasis on extensions and I see TIFFs produced with a variety of extensions. I'm not sure how much more can be constructively accomplished on this topic. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmerdam@pobox.com light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | President OSGeo, http://osgeo.org