An Ultrasonic Cleaner is equipment used by film and video production companies to clean film by using sound waves, without application of any pressure, solvents or abrasive techniques. (Lab)
U-Matic is a 3/4" video tape capable of producing high quality results. It was used in by video production services companies prior to digital video formats being developed, which are more commonly used by video production companies in the development of corporate video productions, sports video, educational video, documentaries and low budget films or advertising such as Viral Advertising productions. (Film & video productions)
Unbalanced Frame Rates will produce errors in production, for example if shooting at 22 frames per second. Video production services organisations often use Ramping when choosing to shoot slow motion, however this should not be confused with Unbalanced Frame Rates (Camera Crew & editing)