The images in the first video look suspiciously like run-of-the-mill satellite flares
http://www.ajaytalwar.com/Iridium-Fl...ay07-lores.jpg
August 27, 2001 Aurora Gallery
As for the second video, it wouldn't be the first time in recent history a rocket launch has roused cries of "UFO." The Long March 2F and 3B launch vehicles have 6 and 7 engines, respectively, and could easily produce the contrails seen in the video.