>There's no difference, except for the point that you mentioned- possible compatibility problems with software that expects a 3 character extension. I name my files with 3 chars for this reason, but beyond that, I wouldn't worry about it a bit.
Thanks. I'm going to stick with 3 chars also, there is logic to support that way of doing it.
The Anonymous Bureaucrat,
and frankly, quite content not to be
a member of either major US political party.