This is a problem I also see in X-Rite Monaco Profiler 4.7x. in
addition to ProfileMaker 5.x. It's definitely not a "Carbon" issue as
Photoshop (and other Adobe applications) are Carbon and yet it
doesn't have this cockamamy file length limitation. I regularly run
into this problem, but then also run into a similar problem when
saving such files on certain Windows servers which somehow refuse to
allow the copying of files with long file names.
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
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Co-author "Real World Color Management, 2nd Edition"
Published by PeachPit Press (ISBN 0-321-26722-2)