Various methods and systems permit digital data, such as video data, audio/video data, audio/video/subpicture data and the like, to be processed in a manner that permits playback at different speeds in both forward and reverse directions. Various embodiments are also directed to handling playback rate...http://www.google.de/patents/US20040001694?utm_source=gb-gplus-sharePatent US20040001694 - Methods and systems for processing digital data rate and directional playback changes