When playing a longer video files, it is very difficult to scrub only a few seconds back. There are a few features that could make with much easier:
-Buttons on the player to jump 5 seconds back and forward with no manual scrubbing. The Netflix video player has these for reference.
-Both Nuke and Adobe Premiere have the ability to zoom in on the area where you scrub through a file. This allows you to scrub through a smaller amount of content in the larger space to give finer tuned control.