This is a test of commonsense. Complete the next sentence:

How to use fraps
Download fraps from the fraps homepage.
Based on your needs, you may choose either the free or paid version of fraps. The free version has several limitations that the paid version does not.
The free version of fraps : Can only record clips of 30 seconds or shorter (the paid version has no length limit. ) displays a fraps watermark at the top of all recorded footage.