[Robert Sovran]

Thanks for your response.

This is an h.264 file that was originally created by compressor for blu-ray so I know that it is specs compliant. Original source materials are long gone. I have been able to add the needed chapters. How can I now create a BDMV file (from this h.264 file and the original AC3 file) and burn it back to blu-ray WITHOUT re-compressing (re-encoding) it. I don’t want to degrade the quality.

DVD Studio Pro could mux a MPEG-2 file/AC3 file and create a VIDEO-TS folder for DVD without degrading the video. Is there a way to do this in blu-ray and create BDMV file.

Thanks so much for any help.