What with more and more video codecs being involved and YouTube continually fiddling, it's not surprising that shareware-by-any-other-name Mobitubia is having to be fiddled with too, to keep it working efficiently. Version 1.81 build 5 just got released for anyone who's donated to the project and features video playback fixes, general app bug fixes and a new feature: Make thumbnail, for clips which don't come with one. Recommended.