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Creating non-rerender DVDA Blu-ray from 720p AVCHD source
Hi,
My source video is 720p AVCHD from a panasonic lumix zs3. My project in Vegas 9 Pro has some high res pictures and some text but that’s it. I have tried rendering using the 1920×1080 AVCHD 60i template in Vegas but DVDA still wants to recompress the audio. I tried changing the bitrate to 256 ac3 and DVDA 5 then will try to recompress the audio and re-render the video for some reason.
1. Should I use that template? Is there one I can use, considering my source, that will result in a non-rerender DVDA Blu-ray?
2. Should I upconvert in the rendering process?
3. Is it better to render in parts using a batch render, which is what I’m doing, or render as one file with markers included? my concern is that there may be a pause in between the clips when played back on blu-ray.
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9 Replies
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Let me also add that I’m not rendering seperate audio and video, but should I if I’m doing a batch render and rendering 30 seperate files? Will that be easy to rejoin in DVDA or easier if I was working with a single file with markers included?
Also, when trying to choose one of the blu-ray templates and change to avchd, the include audio is greyed out. Is this because I should be rendering audio seperately as ac3 or pcm wave?
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1. Should I use that template? Is there one I can use, considering my source, that will result in a non-rerender DVDA Blu-ray?
You should use one of the Blu-ray templates that matches your source. That means use a 720p template. All of the Blu-ray templates render video only. The audio MUST be rendered separately. Use the default Dolby Digital AC3 Stereo DVD template. If you want DVD Architect to not re-render, then stop changing the settings in the templates and just use the default templates that Sony provides.
2. Should I upconvert in the rendering process?
I would not. If all you have is 720p then that’s all you have. Upscaling it to 1080i will not make it look better and could make it look worse.
3. Is it better to render in parts using a batch render, which is what I’m doing, or render as one file with markers included? my concern is that there may be a pause in between the clips when played back on blu-ray.
If you want chapter points to work correctly, you need to have one big file. Multiple smaller files will not navigate backwards (only forwards) through chapter points.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks John!
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I used the blu-ray 1920×1080 60i template but to not upconvert, I had to change the res to 720. Am I wasting my time by changing this? Should I have problems in DVDA?
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If you are using the Blu-ray 1920×1080-60i template, you need to change both the resolution to 1280×720 and the Filed order to Progressive. You should be good after those two changes.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
DVDA wanted to recompress which those settings too. I think I needed to also change the framerate from 29.970 to 24 as DVDA says it supports 29.970 in interlaced only which could be a typo?
Also using the template suggested for audio, it wanted to recompress as well. The audio wouldn’t take as long so I don’t really care if that happens, but the video takes forever to re-render.
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I used the blu-ray template 1920×1080 16 60i template without changing anything like you said and it worked without recompression and it looks fine so I guess I will have to use that. I tried with 720p and it just would not take it without recompression.
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You know I just checked the DVD Architect manual and it looks like it doesn’t support AVCHD 720-30p. It looks like you need to deliver it as interlaced or change the frame rate. I tried 23.976p but it also wanted to re-encode that. I’m not sure what’s going on. I only work with 1080-60i so I haven’t encountered these limitations before.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
[John Rofrano] “If you want chapter points to work correctly, you need to have one big file. Multiple smaller files will not navigate backwards (only forwards) through chapter points.”
Please see my post ‘Small Clips – One Big Movie’ It might be the way I’m building the disc or the problem has been fixed in DVDA 5.2, but it works for me.
Rob
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