Techniques enable locating a position within a file that corresponds to a desired seek time without having access to an index specifying the desired seek time's position. An iterative process may be used to estimate the position that corresponds to the desired seek time. The process may iterate through...http://www.google.de/patents/US7975225?utm_source=gb-gplus-sharePatent US7975225 - Iteratively locating a position corresponding to a desired seek time