My wife bought a new Mac a few months ago. She could no longer use the printer, a trusty old Brother HL-5030. It turns out that you need to install some suuuuper old drivers, which you can only install if you install Rosetta, first. But it worked! Wow. I don't understand how normal people do this. I guess they buy new printers because software engineers can't be bothered to repackage the drivers. Shame on them!