I’ve been using Verbatim discs, and I just tried it with that older version of tsMuxer with no luck. tsMuxer usually works for me when I use it for the Despecialized releases (which are single layer) but still no luck with these for dual layer discs. Is there maybe some way that I need to indicate when making the BDMV that it’s for a dual layer disc, or perhaps I need to indicate a layer break from one of the chapter marks, like I would for authoring a dual layer DVD in DVD Studio Pro?