Well I meant Pages as in WP Pages (not Posts). When I converted the client site they have these static folders 'CM', 'Lword' and 'FR' sub-folders that contained single index.php files in each.
I of course wanted to use as much WP functionality as I can. So I enabled permalinks. So that instead of the links showing as http://www.some_domain.com/?p=123 or whatever I wanted 'pretty' URLs like http://www.some_domain.com/lword.
The issues is the uppercase URL versions of 'CM', 'Lword' and 'FR' are out there in the search engine cache and also on job posting site (The CM and FR folders are for jobs). The client insisted they still work.
As I mentioned I setup a redirect in Apache to handle this. I could solve the issue for the other two URLS in the same manor.
But I was thinking, what if the client creates new pages (lowercase page slugs) but some web surfer enters uppercase for the URL. The page is not reached. They must be lowercase. This is where my interest in a mod_rewrite rules stems.
I'm guessing there is also a way to have Apache ignore case via some httpd.conf setting.