5 Replies Latest reply on Jan 25, 2009 8:42 AM by Tim Flippance

    Exporting 1080P25 to Blu-Ray

    Tim Flippance Level 1
      I'm working on a film shot in 1440*1080p25, and I'll eventualy want to put it on Blu-Ray disc. In Premiere, when I look at Export > Media > MPEG2 Blu-Ray, 1080p25 is not listed, but 1080i25 is. Also in the booklet for my camera (Canon HV30) it says 1080p25 is recorded as 1080i50. Does this mean I'll be able to export 1080p25 to Blu-Ray using the 1080i25 setting?

      Tim
        • 1. Re: Exporting 1080P25 to Blu-Ray
          Harm Millaard Level 7
          BR specs do not allow 25P. Thanks to Sony.
          • 2. Re: Exporting 1080P25 to Blu-Ray
            Jim_Simon Level 8
            I believe the Blu-ray spec only allows 1080p at 24 fps, which is an ATSC standard. For PAL 25 fps I think you're limited to 1080i, or 720p.
            • 3. Re: Exporting 1080P25 to Blu-Ray
              Tim Flippance Level 1
              This is very depressing! I've got lots of questions now:

              1/ If I export this 1080p25 film using the 1080i setting in the Media encoder, will it convert my 1080p footage to 1080i?

              2/ I know there is 30% less vertical definition (a deliberate blurring to avoid line flicker) with 1080i than with 1080p (which is why I used 1080p in the first place), but is this blurring introduced at the record stage (by the camcorder), or is it added later? (if the former I'll lose no definition by converting it to 1080i).

              3/ My camera booklet says it records 1080p as 1080i, so surely the 1080i setting in the Media encoder will accept it? After all 1080p is simply 1080i with both fields identical?

              4/ What about converting to 1080p24?

              5/ If all above fails, how can I get 1080p25 onto disc or some other medium so that it can be copied, shown in public, etc?
              • 4. Re: Exporting 1080P25 to Blu-Ray
                Harm Millaard Level 7
                1. This is in contradiction with point 3.

                2. Where do you get this info from?

                3. Yes, broadly speaking yes.

                4. Forget about it. Too much trouble, since your camera puts your P frames in an i wrapper.

                5. Just use 1080i/50 as project settings and export the same.
                • 5. Re: Exporting 1080P25 to Blu-Ray
                  Tim Flippance Level 1
                  Thanks a lot Harm. So when I capture from the camera to Premiere it will accept my 1080p footage with 1080i as the project setting?
                  The info about slightly blurring each line to adjacent lines with 1080i I think I got from Wikipedia.
                  Tim