I haven't posted a message to this list for a while, and I want to be sure I still can, so I'm sending a link to my blu-ray video disk image creation workflow (I've just updated it for Lion). It's based on information found here: http://saas-ppm.blogspot.com/2008/11/playing-avcdh-content-on-blu-ray.html You just feed it the BDMV folder from your blu-ray disk structure (you can build one with tsMuxeR). You'll need a blu-ray burner, of course, and Toast or other commercial burning program, unless one of the free utilities (Burn, FireStarter, LiquidCD, etc.) has been updated to let you burn blu-ray media at the size capacity available. If any of them do I think Disk Utility may let you burn to a blu-ray burner, but it won't let you use all of the disc. And the free burners I know of all use the Mac OS internal burn framework, so they aren't likely to do better. I don't think you need the Toast blu-ray authoring plug-in just to burn a blu-ray disk image, though. https://sites.google.com/site/llee040/applescript/bd_disc_image Laine Lee