DVD Architect Pro 8.0 project properties.

[Norris Combs]

My source video is 1920 x 1080, 60p
Rendered with Vegas Pro 12 at 1920 x 1080, 60i (since there's no 60p option)
Main Concept AVC template

Dragged the .avc file into DVDA to prepare.
Under File > Properties > Framerate, the following are options to choose from:
24.000 progressive
29.970 interlaced
25.000 interlaced
23.976 progressive

Which should I choose? I want to burn the resulting .iso file to a blu-ray disc.
Thanks,

[Jeff Harper]

29.970 interlaced. You want it to match the frame rate of the rendered video. 60i is actually 29.970, don't ask me why, it's beyond my expertise.

Also, you are rendering separate audio and video, correct? If not then you should. Also, make sure your project properties match your video and audio render settings or DVDA will re-render, which is NOT desirable.

[Norris Combs]

Jeff,
Yes, I did a separate video and audio render. Now there's a new problem.
In DVDA Properties, under Frame Rate, I tried all the different options, because none worked. This is the same error message that DVDA kept spitting out ( see attached).
What can I do?
Thanks,

[Jeff Harper]

Norris, I am very sorry, but in years of using DVDA, I have not ever had that message, so I cannot help you!

Hmmm, my first thing would be to move the video files, the whole thing to another drive and try again, making sure DVDA references the new location, not the old. Will this help? Doubt it, but it's the first thing I always try in a weird situation. The message seems to be saying DVDA has a bug, but I don't know! Someone smarter then me should pop in here and help you. Good luck!

[Ron Evans]

You need to render as a Bluray compliant file. This can be found under Sony AVC/MCV in the render as menu. In your case 1920x1080 60i and the data rate can be customized for best quality for your length of program. If its less than about 1 hour 40 then start with the 16M preset and up the data rate. Bluray choices are limited to 60i, 24P and 1280x720P60. So if you shot at 60P then you could do 60i or scale for 720P. I would stay with 60i. If you want to get a 60p AVCHD file then that is possible in Vegas by rendering a Sony AVCHD file and altering the output frame rate to 59.94 ( Double NTSC ).

You could also render as a Bluray MPEG 1920x1080 60i file under the Main Concept setting which will be a lot quicker than AVC render.

60i time code is 29.97 comes from the fact the 60 fields NTSC takes just a little longer than a second. Time code increments every two fields ( two fields is a frame ) so works out at 29.94 frames a second. However not to be confused with exposures of the camera as that is 59.94 exposures a second recorded as fields and why 60i has the same temporal motion as 60P. Interlace just happens to be half the vertical resolution of progressive. With good upscaling players and interpolating displays there is very little difference. I really cannot tell the difference between 60i and 60p from my CX700 or NX30U when played back on my Sony 240hz interpolating LCD display because the display interpolates all the missing fields of the interlaced video. The difference comes in editing and encoding if a still is needed from the video or effects have more data to work with for the progressive file.



Ron Evans

[David Jimerson]

NTSC frame rates are a tiny bit slower to accommodate color information into the signal.

The formula is Frame Rate x 1000/1001.

30 x 1000/1001 = 29.970.

24 x 1000/1001 = 23.976.

60 x 1000/1001 = 59.940.

NTSC interlaced video is actually 59.94 but its time code is "29.97" because the time code counts "frames" and not "fields." The video is taking and recording 59.94 pictures per second, but it's only recording half-pictures, fields. Each field is a separate image, though -- no two fields are from the same whole picture. But the time code counts field pairs as "frames" even though they're made up of two separate moments in time. Thus, the time code is 29.97.

This is kind of stupid in this day and age, and it's really confusing. The numbers of pictures per second, whether they're whole frames or fields, represents the number of movements per second, and 60i video moves 60 (59.94) times per second, not 30. The movement is what makes a frame rate look like it does, not whether it's progressive or interlaced, and 60 movements is 60 movements. So, 60i and 60p move the same -- they both look "live" like news, sports, or soap operas. And they don't move like 30p, which really IS 29.97 pictures/movements per second, and does NOT look live.

So remember that interlaced video (SD or HD) is really 60i even if the time code is 29.97. If you see someone say "30i," it means 60i. (This includes Vegas when it displays a frame rate of "29.97i.")