https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Canon-5d-Mark-IV-Video-Files/m-p/287459#M64578 <P><SPAN>I think I figured it out. I have dual cards in the camera, SD and CF. In order to record movies, the playback setting must be set to the SD card. I reset my camera to the default, set playback to the SD card and recorded a movie. And, it shows up on my mac. Frome page 167 of the manual: Movies cannot be recorded simultaneously to the CF card and SD card. Movies will be recorded to the card set for Playback.</SPAN></P> Sat, 23 Nov 2019 18:45:43 GMT jbodine74 2019-11-23T18:45:43Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Canon-5d-Mark-IV-Video-Files/m-p/287452#M64577 <P>I have a 5d Mark IV, all updated with the latest firmware, SD card and CF card, recording to both for&nbsp;redundancy. Mac OS Catalina. When I put the SD card in my Mac the video files do now show up. I know they are there becasuse I can play them on the camera. I know Catalina has sme new video incompatibilities but why won't the video files even appear? I tried both .mov and .mp4.</P> Sat, 23 Nov 2019 17:58:53 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Canon-5d-Mark-IV-Video-Files/m-p/287452#M64577 jbodine74 2019-11-23T17:58:53Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Canon-5d-Mark-IV-Video-Files/m-p/287459#M64578 <P><SPAN>I think I figured it out. I have dual cards in the camera, SD and CF. In order to record movies, the playback setting must be set to the SD card. I reset my camera to the default, set playback to the SD card and recorded a movie. And, it shows up on my mac. Frome page 167 of the manual: Movies cannot be recorded simultaneously to the CF card and SD card. Movies will be recorded to the card set for Playback.</SPAN></P> Sat, 23 Nov 2019 18:45:43 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Canon-5d-Mark-IV-Video-Files/m-p/287459#M64578 jbodine74 2019-11-23T18:45:43Z