When viewed in My Screen Recorder, the built-in player plays back the video in its original resolution. By default, the Windows Media player displays the screen recording in a very small window. You will need to play it in full screen mode. The short cut key to view it in full screen is ALT + ENTER.
My Screen Recorder Pro allows you to generate an executable, which is very useful for distribution. The executable has a built in player, which maintains your original resolution across different PCs.