OGG audio files no longer open in a new player window as the video files do. Having them open in a size-controlled new window made it possible for pages to have small play buttons, and thus make pages look and work well for mobile users.
Now, tapping the play button just reverts the display back to the regular, wide player that plays within the window. Tables that once fit just fine on a mobile screen are now stretched out of frame even before any play buttons are clicked, and this default player also has a very small play/pause button difficult to tap on when using mobile.