Open the Options Dialog on the active monitor (so it won't be forgotten on a secondary monitor)
When checked, the options dialog will always open on the currently active monitor. When unchecked, the options dialog will remember its last position, allowing you to have it appear on a secondary monitor.

Move Mouse off-screen when entering Zoom / Fullscreen mode
When enabled, Zoom Player will move the mouse cursor off-screen when going into Zoom or Fullscreen mode.

Move Mouse off-screen when the Mouse is hidden by inactivity
When enabled, Zoom Player will move the mouse cursor off-screen when it is hidden by inactivity.

Prevent moving the user interface off the primary monitor
When enabled, Zoom Player will not allow you to move the main user interface off the primary monitor.

Auto Switch to Audio Mode when a Media File does not contain a Video Stream
When enabled, Zoom Player will automatically switch to Audio Mode when a media file that does not contain any video content is played.

Auto Switch to Media Mode when a Media File contains a Video Stream
When enabled, Zoom Player will automatically switch to Media mode when a media file containing video content is played.

Auto-Size User Interface to maintain Video Aspect Ratio (when resizing)
When enabled, Zoom Player will try to automatically adjust its window size to match the video's aspect ratio.

Auto-Size User Interface to fit Source Video Resolution (on load)
When playing new content, automatically resize the Zoom Player window to match the source video resolution.

Show Button "Hints"
Controls whether small pop-up hints appear when the mouse hovers over user interface elements.

Remember Window State on Exit (fullscreen / width / height)
When exiting Zoom Player, remember the width/height and if Zoom Player was in fullscreen mode so that the next time you run Zoom Player, these values will be restored automatically.

ESC Quits Player when used in window mode
Pressing the ESC key closes all user interface elements currently visible. With this setting enabled and no user interface elements visible (other than the main window), pressing the ESC key will close Zoom Player.

Playing new content moves the player window to the top
With this setting enabled, playing new content will ensure that the Zoom Player window is top-most window (with the exclusion of stay on top windows).

On Media / DVD Play
This setting allows you to control Zoom Player's behavior when new content is being played.

On CD / DVD Insert & Play
On CD / DVD Insert controls what action Zoom Player should take when it detects an inserted CD or DVD.

Start player in
The Start player in setting controls the Zoom Player window state when Zoom Player is initially run.