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October 2004
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2004.10.02 01:45 "Re: BigTIFF extension issue", by Bob Friesenhahn
On Sat, 2 Oct 2004, Joris wrote: > uncommon for applications to not be able to foresee future incompatible versions > of file formats, users do know that, and expect Photoshop 4.0 to eg not know > what a DNG file extension means. That is merely logical, no user expect up to > date behaviour from an outdated version. GraphicsMagick would attempt to read the DNG file like a normal TIFF file and obtain poor results. Extensions are almost meaningless except for as a hint since responsible readers look at the file header instead (if they can). Users are usually illogical when something doesn't work. Most users won't know what BigTIFF is. > I feel the primary issue is: Is BigTIFF a new version? Or is it a new file > format? Let's decide, and be consistent, is what I propose. Do you plan to write Since no existing standard TIFF reader can read BigTIFF, it must be a new file format. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen