Jon Geddes
Forum Replies Created
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DVD format (NTSC) only supports 720×480 video. The only difference between 4:3 and 16:9 is the Pixel Aspect Ratio. 4:3 is 0.9 PAR, and 16:9 is 1.2 PAR.
So your 720×480 video should look squeezed, but when you encode it, you tell it that it is widescreen, so when it is played back on a dvd player, it stretches it out to 16:9.
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
A few seconds of googling reveals that the Sony HDR-SR11 records @ 60i only… which is interlaced.
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
The short answer is no. Any part of a button will be included in it’s selectable area. That’s not a limitation of encore, but of the dvd specification. You can however create a workaround, by creating separate menus for each button, so when you press the down arrow, it auto-activates the next menu, which shows your picture while the next button is highlighted. This has limitations, like not auto-activating when viewed on a software dvd player (computer), and the audio starting over when the menu changes.
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
I just looked at the specs for the Sony HDR-SR11 which records in AVCHD Format @ 1920×1080 in 4:2:0 chroma subsampling. Although the data is extremely compressed to mpeg4, you have a 960×540 chroma subsampling resolution (assuming no pixel shifting techniques are being implemented), which is better than the 720×540 of HDV… even more of a reason to use HD instead of SD. Unfortunately that is a very consumer camcorder, which doesn’t have the nice lens and quality of a prosumer or professional camera.
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
Wow. Good find. Looks like I was spot on with the trapcode particular and custom particle. Lots of good info in there. Thanks Carl!
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
For best possible quality, always go with HD, even if the final product is only SD. The reason you might ask?
DV footage uses 4:1:1 Chroma subsampling, which means it has 1/4 the horizontal resolution of color information than it does luminance information. So basically you have a 720×480 black and white image overlaying a 180×480 color image that is scaled up to produce your final video. This is how DV compresses the data.
Now what happens when you shoot with HDV? HDV uses 4:2:0 chroma subsampling (or better if you are using XDCam or DVCPro HD). So HDV has a 720×540 resolution of chroma data, which is then scaled up to 1440×1080. So when you make your final mpeg for the DVD, would you rather be starting with 720×540 of color data, or 180×480 of color data?… The answer is obviously 720×540 as it will produce an mpeg2 file with more color definition than the SD footage would have.
So in conclusion, always use HD if you want the best image possible.
For a better understanding of chroma subsampling, visit:
https://en.wikipedia.org/wiki/Chroma_subsampling
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
Yes, that can be achieved. It appears as if trapcode particular was used, with a custom particle (probably image/video of a sphere with nice specular highlights), and some depth of field. I’m sure it took a great deal of time to get the look he/she created in that video… but certainly possible with after effects (and trapcode particular)
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
If you’ve already done a lot of work to your precomp in your main composition, then you probably want to do this:
1. Select the precomp in the timeline, press Ctrl + D to duplicate it
2. Select the precomp in the project panel, press Ctrl + C then Ctrl + V
3. Make sure your duplicated precomp is selected in the timeline, then select the newly created precomp in the project panel and drag (then hold down ALT) and drop it on the duplicated precomp in the timeline. You can then release the ALT key after you release the mouse.
4. Your duplicated precomp has been replaced with a copy of the original precomp, and can now be modified without effecting the original.
It might take a long time to explain, but it takes maybe 3 seconds to accomplish. The button commands I gave you are for the PC, if you are using a Mac, you will have to use the mac equivalent of the Ctrl key.
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
You should google a blu-ray bitrate calculator. A quick search brings up:
https://dvd-hq.info/bitrate_calculator.php
If the length of your video is 192 minutes (3.2 hours) and audio is encoded at 224 kbps, your bitrates should be around:
MAX: 24050 kb/s
AVG: 16200 kb/s
MIN: 6450 kb/sDo 2-pass variable bitrate for best quality. Be prepared for a render that takes a couple DAYS. Good luck. You should double check the bitrate settings using the calculator provided or a different one that you find… because you don’t want to mess up on a transcode that takes over 36 hours.
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com -
I’ve had this happen to me with a Blu-ray project in Encore CS4. This happens in preview mode only. It will not happen once the disc is burned. You can test by building an image, then mount the image using a free program like daemon tools (then playing it with a program like power dvd).
Jon Geddes
Motion Graphics Designer
http://www.precomposed.com