A computerized method for integrating media streams from a multiplicity of media systems over at least one network into a single media product at high media technical quality, the method comprising the steps of, at certain media systems from among the multiplicity thereof: a. Generating a low volume (LV) media stream representation from a high volume media stream, where the low volume stream's bit-rate is different from the high volume stream's bit-rate; b. streaming the low volume media stream to a content generation center via a data communication network; c. Maintaining high volume local data as a high volume media stream in a storage medium coupled to at least one of the media systems; and d. maintaining mapping information between the low volume stream and the high volume local data for enabling access to media portions in the high volume media stream storage, which correspond based on LV stream time.