So, I decided to try my old standby, GUI Tar. and decided to use the 7zip format that I've standardized on for long-term archives. For whatever the reason, GUI TAR didn't work either, also freezing. This was the first time I'd tried to use it on a Mac using Snow Leopard, so I'll be dropping it from my list of favorite Mac apps...even the latest version doesn't work. Sigh.
Since I've standardized on 7zip format, I had to find a program that would work well on Mac. Sure enough, there's been some innovation in this area and I found several solutions, however only one worth writing home about.
What works best? Keka for Mac. It's free.
What a pleasant surprise to find it!