Rendering blu ray: 1920 or 1440?
I have some footage that I shot in 60i, using my XH-A1. I've imported it into Vegas Pro 8, done some editing and color correction, and am now about ready to render it into a DVDA Blu Ray format. The project settings (which I set to match the media) show up as 1440X1080. In the render settings, there are several 60i options. The final blu ray project will be viewed on a HDTV that can show 1920X1080i for TV, and 1920X1080p for blu ray media using the blu ray player. Given all that, should I use a 1920X1080 setting, or a 1440X1080 setting when I render?
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What DVA codec choice are you using -- MPEG-2 or AVC? I haven't taken the time yet to see what seems to work best. Hope this info. is helpful. Ian |
Another reason to come to the same conclusion:
If you are compressing 1440X1080 instead of 1920X1080, effectively, you are compressing it less at the same data rate since there are so many less pixels. And since that's the resolution you started with, you aren't throwing away any resolution. And the scaling hardware in Blu-ray players is typically really good. |
There should be no scaling of 1440x1080. It's merely a pixel reshape. 1440 is a rectangular shape whereas 1920 is square. HDTV uses square pixels, thus any time I amy prepping for HD or web I convert any non-square footage to square to avoid issues.
If you edit at 1440, and lay in graphics and titles, they will all reshape when going to square pixel formats. |
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1. 1920x1080 2. 1280x720 1440 is a capture format using non-square pixels which HDTV does not support but was a compromise necessary to put HD signals on miniDV tape. I'd render at one of the two supported data sizes. |
I disagree. I've done this both ways many times. There's no reason not to render to 1440 unless you are using mixed footage in your project. Blu-ray format supports 1440, so the player upscales the output.
On Blu-ray, my judgment is that 1440 is clearly better looking than rendering to 1920 in software, that's my experience, plus you have more encoding headroom for the same bitrate with the smaller frame size. |
He asked my opinion, I offered it. Your's is different and that's cool.
So there it is. |
Just giving my opinion too, no problem here.
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Thanks (all of you) for the feedback.
In the render settings, do you leave the video quality setting at the default, or do you move it to the right? |
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I burned a test HD-DVD onto a DVD5 (4.7GB disk) with 20 minutes of footage
It was all kept at 1440x1080 and looks fine. Once we get the new blu-ray player, I'll repeat the test on our new Sony 52" 1080p, but I have a feeling it'll be the same (just fine) If you stick a DVD into your DVD player attached to an HDTV how is it possibly playing a 720 x 480 video on 1920 x 1080? TV's have internal scalers that can handle different resolutions and understand pixel aspect ratios. (Which standard DVD's both have, Standard Definition does not use square pixels) |
Good Morning,
Is it possible to burn hd to a standard DVD and then play it to an HD television? I reckon not, but I do not have a blu ray player yet. |
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However, if all you have is a standard DVD player, then it won't understand the data stream. |
It will work, it's just the size of the data, you can only fit 20-30 minutes of footage before you have to start compressing it a lot.
It's great for testing/watching movies on your big-screen if you got a blu-ray or HD-DVD player... just you're limited to 20-30 minutes... |
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