Please update to this newest version.... it corrects ALL issues with the previous version, as well as includes many new features and 8 new AV Sync Quicktime Movies, links to Sync Videos and links to Camera Chip Charts to calibrate your Studio to Consumer Cameras... Focus, Chroma, Luminance!!!!:^)Completely re - Design & Code. No more Objective C, all now in the newest Swift. This update corrects a LOT of issues with playing the video back correctly and full-screen. There are also now 8 new HD Quicktime Movie files for every World TimeBase (NTSC, PAL and etc.) that the user can download from the iTunes File Sharing menu, these Quicktime movie files can be played back on ANY computer (Mac, PC, Linux, Unix....) for testing Video/Audio Sync on any system. One of the QuickTime Movies is an H264 movie file, for playing back for example, on most 4K/UHD/HD/3D TV's using a USB Drive for testing sync in your home theatre, to major motion picture theatre.Now included is AirDrop, to let the user share any of the resources within the app, also within the custom web browser there are links to many, many other YouTube, Vimeo and other AV Sync Video types.This app also works Landscape (suggested) and Portrait.For the request of other QuickTime, Timebase Movie files...Thanks to;Ben Johnson SNG Engineer Sydneyteleport.com.au Gold Coast