Can't get VLC to work as external DVD player for Movienizer

[Losthost]

Hello. I try to put VLC player as external player for Movienizer catalogue program. It works fine if I need to play single file movies (mkv or mp4) but with DVD it's trouble.
I put in command line like this - "C:\Program Files (x86)\VideoLAN\VLC\vlc.exe dvd:///%1" where %1 is "F:\Moviefolder" (with Video_TS and Audio_TS inside) and I get an error "VLC can't open MRL 'dvd:///F:\Moviefolder". But if I enter "dvd:///F:\Moviefolder" in VLC it works fine. What am I doing wrong?