Sony
Sony XAVC Files Explained: Where the Video Is, What C0001 Means, and S vs HS vs S-I
Sony cameras put video in a different folder from photos, add an XML file to every clip and can record a second, smaller copy. Here is the card layout, what XAVC S, XAVC HS and XAVC S-I mean in practice, and the in-camera settings that stop two Sony bodies producing the same file names.