How to screen record higher than 1920x1080 I just made a new app that I'm selling, and I'm using a mp4 video on the home page of the sales site. It looks pretty fuzzy on retina displays:

http://mapleapp.info

I've been capturing this video with QuickTime, but i can only export up to 1920x1080. All I need to do is export at a higher quality in order for it to look OK. I've found some third party solutions, but anything I've found that's capable of exporting video at higher than 1080 also comes with a hefty price tag (> $20). Now don't get me wrong, I'm all for paying for apps, but this is something that I'm going to use very rarely and I just can't justify paying that much for something that I'll only use on occasion.

Does anybody know of a way to screen record on a Mac and export at higher than 1080 quality? Preferably I'd like built in or free solutions, but I would be willing to pay for an app if it were less than $10. Any suggestions greatly appreciated!
A quick Google search found one of my favorite tips for OS X: http://hints.macworld.com/article.php?story=20131030130206132

Essentially, go to System Preferences > Displays, option-click the Scaled button, then select a  new resolution. Your QuickTime movie should record at the new resolution, but remember bigger resolutions take up more graphics power.