2000.04.16 22:05 "RE: tiff with jpeg (unknown tag 33918)", by Ed Grissom
I'll move up to the latest version of LibTIFF and see if that helps...
Moving up to V3.5.5 had no effect on the problem.
To restate the problem with less verbiage:
Tiffcp creates files it does not read correctly.
Create a tiled RGB JPEG with tiffcp, then try to convert that file to some other type. tiffcp will crash. Note that the file created seems to be good, it is just that tiffcp cannot read files of this type correctly.