Anyone having problems with corrupted MP4 files? Anytime I shoot a video immediately after taking a photo in RAW format, my MP4 files are corrupted. When I try to open them in Lightroom I get the message: Unsupported or damaged file. When I shoot video only, there's no problem. The only way around this is after shooting RAW images is to land, transfer the images off the card and then re-format the card. After doing this the video files are fine.