We put up some videos, professionally shot, on YouTube. Using Final Cut Express, we made clips, added titles, etc to enable the upload of individual songs from our concert DVD.
In Final Cut, the Anamorphic tag was checked when we opened the clips; making a DVD for NTSC TV sets requires this. We exported the videos at “Current Size,”which was 853×480 and they played fine in Quicktime on my computer, but after uploading to YouTube they played back pillar-boxed and stretched vertically.
YouTube has a 16:9 player, and we thought the dimensions should work, but no.
Solution? After trying various things, we unchecked the Anamorphic tag in the Browser in Final Cut. We then exported through Quicktime; we selected “Custom Size” (using YouTube’s recommended size of 640×360), with “preserve aspect ratio” unchecked, and “deinterlace video” checked.
Quicktime reshaped the pixels and set it to an output resolution that YouTube recognizes as 16:9.
Ahh – we just found another way to fix the files we output at “Current Resolution” with Anamorphic checked… Using QTAmateur, we batch-exported the 853×480 files using the same settings above and they work ok… and the export went relatively fast. The problem with this, vs encoding out of Final Cut, is that the video is double-encoded, leading to a degradation in quality.