I wonder if Pogue mentions 'case-sensitive' anywhere in that book (in the index perhaps). Because some apps (e.g., creative suite) have been known to react unfavorably if the boot volume is formatted as such. But for a backup volume (and backup software), such sensitivity supposedly provides some benefit of sorts.
I haven't come across it elsewhere, and the index (as good as it is) doesn't have a separate entry for occurrences of 'case-sensitive'. As and when I come across a reference, I'll let you know.
