In a nutshell, 1440x1080 is correct as Sony is 'stretching' the 1440 pixels to be 1920. This has been used in HDV and also XDCAM. Panasonic does something a bit different but it's the same idea. This is one technique for creating a smaller HD picture frame. It's nothing to be worried about.
As for encoding for YouTube. When you export, select H.264 as your format and then select among the YouTube presets. No fuss, no muss!
hope this helps,
One of the issues that you are likely facing is that playback in a media player is vastly different than playing back that same material that is being edited. The NLE (Non Linear Editor) has to be able to do much more with the footage, than simple playback, and getting it ready for the editing is basically creating a different file. AVCHD is extremely CPU intensive to edit, and to playback from the NLE. Most suggest a fast i7, and maybe even an overclocked one, just for smooth playback in an NLE, like PrPro.
I think that Dennis has addressed the other issues.
Thanks guys for the feedback, just a few more questions:
1.) What is recommened preset when I create a sequence? Should I use AVCHD > 1080i > AVCHD 1080i30 (60i) Anamorphic?
2.) Is 29.97 the correct frame rate for the camera?
3.) When you playback the source footage within premiere pro, shouldn't it play just as fast as within any other media player (e.g. windows media player) ? I'm running this on a 3ghz quad core pentium extreme edition with 4GB RAM.
1. Set your sequence exactly to what you shot in resolution, framerate and i or p.
2. A player and a NLE are completely different. A player may play well, but a NLE may choke on the same material.
AVCHD is the most demanding format and can slow down a fast machine significantly. A quad core is around borderline.
Thanks for the tips. So final question still remains, about the difference between 29.97 and 30fps? I cant figure out what is appropriate for my camera. I expected it to be 30 fps but premiere seems to think my video is 29.97.
Interesting observation I'd like to share. So I re-encoded the video again using the same settings I first tried:
Field Order Upper
VBR 2 Pass
Target Bitrate 15Mbps
Max Bitrate 20Mbps
When I opened the video in quicktime it looked like garbage. Strange interlacing effects appeared and the aspect ratio was incorrect. Then I opened the same video in windows media player and suprisingly it played back perfectly with very crisp picture and smooth motion. So the moral of the story is, not all video players are created equal even on the same computer.
Hope this helps someone else.
More questions... I have spent alot of time converting video into different formats to see what works and what doesnt. What seems to work best is to convert the videos to interlaced format at 29.97 fps. Playback with windows media player is very good. However when I upload my interlaced videos to youtube the playback is very choppy. Seems that youtube only wants videos in a progressive format. One of the videos I uploaded can be seen here: http://www.youtube.com/watch?v=oPtdjnQvQMg.
From what I understand my camera records at 1080i 60fps. I'm trying to figure out how I can convert this interlaced video to progressive scan with premiere while keeping the playback smooth. Does anyone know if this is possible? Thanks in advance.
Have you tried the YouTube presets under the H.264 format?
I have tried H.264 and MPEG2 for encoding. I didn't try the H.264 youtube preset because it only gives me an option for 1280x720 and my video is larger. However, I did try H.264 but when I uploaded the video, I'm pretty sure youtube wasnt able to process it correctly. The output was kind of garbled.
I'm still curious if anyone has experience converting interlaced video to progressive. I'm convinced there must be a way to do this but I'm going about it the wrong way.
YouTube HD is 1280x720 - it doesn't get any bigger than that.