I'm new at this: is there a way to view that larger size?
What player are you using (Windows Media, etc.)?
If you're using Windows Media Player, right click on the screen and select "view full screen". Or click on the small box with arrow near the right bottom of the panel. Find a similar box to bring it back to regular size. You can also get there from "View" at the top of the page.
FYI all. "View" also has a selection called "Enhancements". Scroll onto it and select "Video Settings. This is where you can make color adjustments, but more important, brightness. Many people complain that their videos are too dark. This one seems OK but I just posted this for future reference.