Best way to export a 1080p 25fps project for US Blu Ray viewing.

T

taras4444

Well-known member
Hi there over the last few days I've been really stuck on this and am desperate for any help, I've researched it for the past 6 hours but still can not find any definitive guide on the subject so a little worried and confused. Basically, can anyone tell me the best option for exporting a 1080p 25fps project for blu ray use in America? If I export it via premiere as 25i would that not work due to most usa tvs playing at 60hz? Will I have to export it via premiere as a 24fps project then slow down the audio by 4%?

Any help would save me!
 
taras4444 said:
Hi there over the last few days I've been really stuck on this and am desperate for any help, I've researched it for the past 6 hours but still can not find any definitive guide on the subject so a little worried and confused. Basically, can anyone tell me the best option for exporting a 1080p 25fps project for blu ray use in America? If I export it via premiere as 25i would that not work due to most usa tvs playing at 60hz? Will I have to export it via premiere as a 24fps project then slow down the audio by 4%?

Any help would save me!
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Mains frequency in NA is 60Hz. Blu-ray, at 1920x1080, supports 30i, 25i, 24p, and 23.97p frame rates. Any of those should work. That said, I've never seen anything other than 24p and 30i, and the vast majority (like, 98%) are 24p. The only way to be sure is to burn one at 25i and try it.
 
Ah ok thank you for the super fast response and that does make me feel better. I'm worried about coverting my 25fps to 24fps as Ive heard it can cause juddery issues etc, so may do the 25i one. I just did a little test however by exporting it with those 1080i 25i settings to h.264 blu ray from adobe (made an m2v file) and tried to watch it via windows media player and vlc but it wouldnt play. Can you only watch the burned blu ray files on blu ray? (Silly question i guess sorry).

If so would you say it may be best for me as I have different sequences in different project files (due to space etc) to render each sequence out at h.264 25fps 1080p (my source settings) then put it all together as one file and export that as the 108025i file and author that to blu ray?

Thanks again
 
One thing to keep in mind is that not all the BluRay players in the USA will play back 25p/50i content. That's also why you don't see it as much on international releases. If the USA and the other NTSC countries aren't a part of your market, then don't worry about it.
You also mention that you encoded a m2v file? I'd avoid MPEG for BluRay as you'll get a better picture in a smaller file size using .h264 for BluRay.
I've also always recommended that people export a self contained movie file at their best quality and then bring that file into the encoding software. First, you'll have more control over your encode settings, and secondly you'll have a full backup copy of your movie should you ever need it. Have you ever tried to open an old project after several years in an NLE? Files, graphics, plugins, etc can and do disappear making it difficult and sometimes impossible to recover old movies.
 
I would also talk to your post sound team and see if they can slow down the audio for you while pitch correcting it. Depending on the mix (5.1 or stereo, etc), the process can take up to 8 hours. If the post sound team has access to a Pro Tools system with the X-Form plugin, they can do the slow down while pitch correcting it to match your picture.
 
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