Adobe Premiere Pro CS4
PDF (adobe.com)
Editing sequences and clips
Trimming clips
Source clips, clip instances, and subclips
Working with In and Out points
Trim in the Source Monitor
Scrub the waveform in the Source Monitor
Zoom in or out on a waveform in the Source Monitor
Trim with Trim-in and Trim-out tools
Trim with the current-time indicator
About rolling and ripple edits
Perform rolling and ripple edits
Perform slip and slide edits
Performing split edits
Work in the Trim Monitor
View source timecode in the Program Monitor