Apple DVD Studio Pro 4 - Manual (Page 414)

When previewing a track, you can use four buttons to control the preview:
• Play/Pause
• Stop
• Step Forward
• Step Reverse
Note: The Subtitle Editor tools in the Viewer tab are unavailable unless you select a subtitle
to edit. See
Creating Subtitles with DVD Studio Pro for more information.
Pausing or Stopping Playback?
The difference between pausing and stopping playback is what happens to the playhead:
• When you pause playback by clicking the Play/Pause button: The playhead remains at its
current position.
• When you stop playback by clicking the Stop button: The playhead jumps to the position
it was at when playback started.
You can also use your keyboard’s Space bar to pause or stop the track. The “Space bar
toggles between play/pause” setting in the Track pane of DVD Studio Pro Preferences
controls whether the Space bar pauses or stops the track:
• With the checkbox selected: The Space bar pauses playback, leaving the playhead at its
current position.
• With the checkbox not selected: The Space bar stops playback, returning the playhead
to its original position.
Holding down the Space bar while playing the clip allows you to stop playing the clip
automatically by releasing the Space bar. The playhead then follows the above preferences
setting.
Modifying the Step Buttons
The Step Forward and Step Reverse buttons move the playhead one frame at a time. You
can use modifier keys to enhance their capabilities.
• Holding down the Shift key while clicking the step buttons: This moves the playhead one
second at a time.
• Holding down the Option key while clicking the step buttons: This moves the playhead
one Group of Pictures (GOP) at a time.
• Holding down the Control key while clicking the step buttons: This moves the playhead
one marker at a time.
You can also click a step button and continue to hold down the mouse button to
repeatedly step the playhead.
414 Chapter 17 Creating and Editing Tracks