Need tips for exporting h264 blu-ray from dvcpro

[tarr]

Hi everyone,
I've never exported blu-rays before, but I'm experienced in exporting to DVD. This said I know, for example, that i must happily encode my source materiali (SD or HD) in CBR 8 if the clip is no longer than 50 minutes and I will stay in the 4,5 Gb limit and avoid old dvd readers stutter by not going above cbr 8 mbs.

Now

Now I am trying to export to blu-ray from Dvc-Pro hd (1440*1080). It is a 25 minutes documentary and I am using CS5.5

What bitrate should I use?
And, moreover, what to choose between Premiere's preset of 1920*1080 and 1440*1080 since my original material is Dvc-pro HD with a 1440*1080 resolution? When I export from dvcpro hd to youtube I always use 1920*1080, but if i use the Premiere "based on source" feature in the h264 blu-ray exporting dialogue window, it chooses 1440!


I am so confused...:embarasse:embarasse

 

[tarr]

I thought this was an interesting topic...

 

[Igelkott Film]

Well if you choose 1920 in stead of 1440 you have more data (upscaling) to compress and theoretically you will get a bader IQ at the same bit rate.

When it comes to dvds it does not have to be CBR, it works as well and better IQ with VBR and you can go up to 9,4 but its good to stay at 8 with headroom for audio.

 

[Jim Simon]

Use 1440 and the highest bit rate that'll fit into disk.