There is no app, here are the steps.
Its really simple. If your video is in the right format, you can:
1. Put a blank CD into your computer.
2. Open the Blank CD in finder.
3. Drag the movie into the CD folder
4. Now there should be a yellow and black ball next to the CD folder in the side bar, or it should say "burn on the top right of the finder window.
5. Click it.
6. The movie is now being put on the blank CD.
If you have any problems just let me know.
- Grosslyclever.