Using Mac OSX 10.4, Safari will download a YouTube vid, but it is coming as an .html file, and says it is an Application. I've tried changing the suffix to .flv, .wma, and .wmv, but it still does not "take." I want only the sound, as an MP3 https://showbox.bio/ https://tutuapp.uno/ https://vidmate.cool/, so I downloaded Switch and the Flip4Mac, but to no avail. Switch says it cannot read the file, perhaps it is not supported. So I need to know how to make the YouTube file convertable. Help!