Choosing export settings for Youtube can depend on several factors, including how long your video is and how much you care about the quality. Generally, videos under 10 minutes in length can be exported for Youtube as follows:
1. Open the sequence you’d like to export to Youtube. Go to File>Export>Using Quicktime Conversion.
2. Choose a name and a destination for the finished video. (Don’t just leave it as “Sequence 1.” That’s sloppy.)
3. If it doesn’t say “Format: Quicktime Movie” already, choose Quicktime Movie from the menu.
4. If it doesn’t say “Settings: Default Settings” already, choose Default Settings from the menu.
5. Double-check your default settings by clicking the Options button. The three checkboxes that say “Video”, “Sound” and “Prepare for Internet Streaming” should be checked.
6. The box next to “Video” should say “Compression: H.264.” Under “Prepare for Internet Streaming” it should say “Fast Start.” If so, you should be good to go. Click Okay to return to the Save menu, then click Okay to start compressing your video.
This can take quite a while, and running other programs while you’re doing it can make it take longer or screw it up, so go grab some lunch. When it’s done, check the size – if it’s under 1024 MB, you can upload it straight to Youtube. If not, you’re uploading something unusually large and you’ll need to play with your settings some more.
If your video is very short – just a couple minutes – and you’d like it to look really good, I can give you some tips on settings to make it look extra clean on Youtube. Generally, though, this will get you a pretty standard-looking Youtube video.
Best of luck!