1)What is royalty free footage?
Royalty Free videos are likely the most popular choice. The Royalty Free license grants you non-exclusive rights to use the shot in multiple ways and perpetually, for a one-time, flat fee. This means you only have to pay for the license fee once, and you get to use the clip in a wide range of ways, forever.
2) Can you use royalty free videos?
Yes, absolutely. The Royalty-Free license, at most of the best stock image sites, enables using the high-resolution photos in videos, for both personal and commercial use, without attribution. Always read the licensing terms carefully, of course.