As far as I know You Tube re-code your uploads to Flash
Try Upload to Web HD Mp4, or use the manager to create your own template.
This will use 1280 x 720 for widescreen.
If you want full HD 1920 x 1080
As you live in the UK take into the Pal standard using 25fps, many internet video use 30fps, converting your video from 25 to 30 will impact on quality
Thanks, that's quite helpful, but Corel doen't seem able to render projects as flv files. This is a shame if the size is reduced by 1/3 with no real loss of quality.
Is there an mp4, mt2 or wma to Flash converter I could get?
I am not sure what the best format and settings are, but I took the video and tried what looked like the best and a few others of several formats. I still haven't tried them all but the best so far were the three I quoted. My monitor is a 16:10 1920x1200, but I video capture the movie as uncompressed, full frame AVI 1920x1080 16:9 at 45 fps and so try to use the same resolution when exporting the project, but converting from 45 to 25 fps doesn't seem to affect quality much.
If YouTube changes them to 30 fps, then I should render my projects at at least 30 fps, yes?
I haven't tried "Upload to Web HD Mp4", as I thought that it would actually Upload to the Web!
I am very new at this. But I'll try that today.
Thanks very much!