Real fire looped, recorded horizontally in order to get more resolution HD 1920×1080, flames stay in the frame so there is no clipping at the edges, this allows you to resize/move/rotate it without problem. You get:

• 1 version prekeyed with PNG + Alpha, just drag to your composition and it´s done good for more “solid” fire in brighter compositions
• 1 version is the original footage (H264) with no alpha, but the black background is perfect to blend by “screen” in darker compositions
  

Sometimes, you will get better results blending both versión. Usefull in oil lamps, fire scenes, welding torch, jet pack…
Photo in the vfx test isn´t included you can find it here: Row of Columns Italy Vatican
Music in the video preview is not included you can find it in this link: Corporate
The video preview vfx tests are not included
You can find another physical fire fx and trasitions here: