Years ago, Canon released a utility for FCP X that "wraps" MXF codec footage from cameras like the XF 100 and XF 300 series with a .mov container during import. It was a background process so Final Cut's import window can be used to import footage normally, because it didn't used to support it natively. It also took MXF file structures, where long videos are broken up into 2.05GB segments, and combined them into a single piece of footage, which is obviously far better. 10.4 breaks / broke this. I can now only see the 2.05GB segments in the import window, and the latest version of the Canon utility does not remedy it. Does anyone know what I'm talking about and can help restore this functionality? Running Sierra 10.12.6 on 5,1 Mac Pro.