Hello, Thanks for the responses. I have switched over to saving to the BVR format. When I do that, and then export from within BI to .mp4, the files are now opening. I am not sure if this is an issue with the .mp4 format, limitation of the format, or the implementation of it from BI. We'll continue ...

Hello, I am using BI 5.3.7.6 on Windows 10. I am successfully recording video streams "Direct to disc" .mp4 format, however whenever I try to open them (with VLC or Quicktime), nothing shows up. In Quicktime, I get the error: "An Invalid Sample Description was found in the movie"...