LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
July 2007
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2007.07.04 18:13 "Re: BigTIFF extension", by John Aldridge
Andrew Brooks wrote:
> On Wed, 04 Jul 2007 17:56:38 +0100, Kemp Watson <kemp@extelligence.net>
> wrote:
>> Besides, if a user tries to open a BigTIFF file with a regular TIFF tool,
>> they will need to get a BigTIFF tool no matter
>> what the file extension is.
>
> The real question here is what error message is presented?
>
> Obviously it will never be the best message: "This is a BigTIFF file,
> please upgrade to a version which supports BigTIFF".
>
> I would hope that the design of BigTIFF means that the messages are not
> simply "Cannot open. File is corrupt", but rather something like "file
> uses an unsupported compression algorithm".
I think there's more to it than that... it's about arranging that
file-open dialogs offer an appropriate list of files. The advantage of a
changed suffix is that non-BigTIFF compliant applications can offer
TIFF files (*.tif,*.tiff)
whereas ones which do support BigTIFF can offer
TIFF files (*.tif,*.tiff,*.btf)
and in each case the user is only offered those files which the
application can process.