This is a really complex topic and one we are happy to discuss over the phone in order to understand your exact expectation of film archiving. At a basic level the digital video files that we produce are coded in such a way that they tell your computer's video player or editing software to interpret the video at the exact frame rate of the original film, this can be 16, 18 or 24fps. So when you play back the digital files we produce on your computer the video file will look like a projected image with very smooth motion. The complication comes when you want to transfer that footage to DVD or Blu-Ray. As a standard, the European DVD format will only allow 25fps so in order to get a 16fps video to play at the right speed we have to inject the additional frames. For European Blu-Ray disks this will allow 24fps or 25fps so again we have to inject the additional frames. The added frames are difficult to spot on a DVD or Blu-Ray playback, and in fact, because they are typically PAL (Phase Alternate Line) encoded the added frames are even less visible and the motion very fluid. Right now this is a technical limitation of DVD and Blu-Ray standards.