Hi! I'm writing once again about this issue that's still there even after the update to version 1.3 of the plugin. The video background is not centered to the browser window anymore: there is a margin on the right side and the video left limit is set beyond the left side of the window... The negative offset and the margin on the right vary in an unpredictable way depending on the browser window size. I've tried with several browsers on several platforms but the problem remains the same. These are 2 screenshots, one with Twenty Eleven theme and the other with a child theme for Twenty Twelve.
Thanks for the support and the great plugin!