OK, I recently installed osx on a G4 cube, and since I wanted a
maximally clean install, I started by building a new file system
on the disk. I came to the question about UFS or HFS+, and, after
a little reading, chose the obviously superior UFS. But now I find
out that various Mac programs, in spite of bearing labels like
"built for osx", do not grok UFS. Also, it appears that new machines
currently are built with HFS+ on the hard drive instead of UFS.
Clearly, it must be difficult for programs to change over to UFS