I export a QT ref from AVID and use the Matrox CompressHD (via Apple Compressor) to create h.264 bluray files quicker than realtime which I then author and create an .iso in Encore CS4 (Mac)(+ae cs4 for motion menus). I burn the iso to disc using toast to BD-RE (for test) via an LG external burner (then BD-R when checked). Playback tested on a variety