For anyone on OSX, OmniDiscSweeper provides a pretty good GUI for this and it's free: https://www.omnigroup.com/more https://www.omnigroup.com/more [Yes. That

For anyone on OSX, OmniDiscSweeper provides a pretty good GUI for this and it's free: https://www.omnigroup.com/more https://www.omnigroup.com/more [Yes. That Omnigroup; the ones who brought us OmniWeb back in the day. Amazing that they still seem to exist]