When you open a video in YouTube, the flash player plays the flv file. If you want the high definition version, click on the HD button presented at the bottom of the flash player in your browser. The HD version will be loaded up. The HD version is more in size and is better in quality too.
Some times when you browse folders in details view, the view may be cluttered and you might want to resize the column widths manually to get the complete details fit in a single screen in the horizontal direction so that you need not use the horizontal scroll bar to view the details which are off screen. Alternatively, Windows Xp provides an automatic way to adjust column width. Just select any row in the list and press they key combination, “ctrl + ‘+’of the numeric key pad”.