Browsing Croatian translation

All the "BUG:" strings are generally meant to be seen by developers,
not end users. They represent programming errors and configuration
file problems.
This is shown if the configuration file has specified two cd-roms (or
whatever) with the same media id, which is a bug the developer must
fix before shipping her installer.
"media id" refers to Setup.Media.id in the config file. It's not meant
to be a proper name, in this case.