Dubes followed up his original email with this: You can download the original six Canon RAW .CR2 at my website and the six derived .jpg files at another website. On the .CR2 files, you can look at the detailed file properties to see when they were written to the camera’s memory card. The camera, a Canon 5D Mark II, can shoot 3.5 frames per second, so I surmise that each burst of three frames was shot in less than one second. However, the memory card cannot accept large files that fast, so the file time reflects the delay in the write-to-disk process. Nonetheless, the 1st and 4th, 2nd and 5th, and 3rd and 6th files were written 14 seconds apart. My camera’s internal clock was still set to daylight savings time, so subtract one hour. Some software will read CR2 files directly; my Photoshop CS4 required a plug-in to do so.