Recordings and local videos prepare editing copies without duplicate encodes.
Seek through local footage
Editing copies make every frame independently seekable. Timeline pictures use ready copies; before then, dragging large footage may hold its picture until release.
Open a finished take
The editor uses the recorder's known length without scanning to the end. Native Mac previews also prepare copies in the background.
Keep original export quality
Smaller preview frames preserve available originals for export. Mac transfers leave time for input between chunks.