Thank you for the concise answer and quick response! -----Original Message----- From: ffmpeg-user [mailto:ffmpeg-user-bounces@ffmpeg.org] On Behalf Of Carles Vila Sent: Friday, June 9, 2017 9:40 AM To: FFmpeg user questions <ffmpeg-user@ffmpeg.org> Subject: Re: [FFmpeg-user] Blue Ray Question On 9 June 2017 at 15:26, Ron Barnes <rbarnes@njdevils.net> wrote:

Hello All,

I know there are tools out there for this question but I'm hoping FFmpeg can handle things.

I have an old blue ray that I would like to shrink. The only problem is when I open the BR in File Explorer there is no way of knowing which files are the main movie and what order those files are supposed to be in.

Can FFmpeg or a tool of FFmpeg help in determining the answer?

What is the main movie files and what order should they be in?

No, ffmpeg won't help you in determining that Blu-rays can be authored in many ways. The main content is most probably the largest file. For a feature film, around 20 GB for a single-layer BD or 40 GB for a double-layer BD. Other files you will see are extra content, trailers, logos, whatever. just look for the largest file. Keep in mind if it's a commercial BD, it will be encrypted and ffmpeg won't decode it. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-request@ffmpeg.org with subject "unsubscribe".