I want to have case insensitive URLs using Apache\'s mod_speling module, but this is producing unwanted lists of \"multiple options\" whilst the Apache documention
TLDR: CheckCaseOnly is broken due to a bug that has remained unfixed for over six years as of 10/2014.
I know this is an old question, but I just ran into the same issue. This update is to help others with the same issue.
The current answers to this question are incorrect, as the OP is using mod_speling correctly, but there is a bug.
https://issues.apache.org/bugzilla/show_bug.cgi?id=44221
The underlying issue is that the apache people are in disagreement over fixing this behavior because it changes the rest of the module. This has remained unfixed for something like 6 years.