You deleted these here, but didn't add them back in without the ogg or opus suffix?  Is that because these duplicate the filename exactly?  If the strings aren't defined here, though, they probably won't get localized into other languages.

I think you should talk to Axel about what to do here. Also, it is worth letting him know about the removal of the _ogg and _opus suffixes because that is a large enough change that he may want to communicate it to localization teams.