Footage Firm: Fiery Explosions Vol.1 (Special Effects with Alpha Channels)
www.footagefirm.com/free-fiery-explosions-vol-1-special-effects.html 
Resolution: 1920x1080 |  *.mov PNG | 3.57 GB

Footage Firm: Fiery Explosions Vol.1 - This special effects collection contains stock video clips that are pre-keyed with alpha channels. They are ready to drag & drop onto any video editing project. No special software needed. The clips are compatible with all computers and editing programs. The clips come as QuickTime (.mov) files in PNG format, maintaining transparency so the effects can be overlaid onto another video. Clips are provided in HD format (1920x1080p, 29.97fps)