r information. The purpose of digital watermarking is to find the ownerships by verifying the signature or watermarks. It is desirable that the embedding and recovery methods are form a logical shield in front of signal processing operations which includes compression, different attacks to vanish signature data. A rate control algorithm dynamically adjusts encoder parameters to achieve a target bitrate. It allocates a budget of bits to each group of pictures, individual picture and/or subpicture in a video sequence. Rate control is not a part of the H.264 standard, but the standards group has issued nonnormative guidance to aid in implementation. This paper discusses about to keep secure videos by mixing signature data (video) with negligible distortion in the original video, and to keep steganographic video as closely as possible to the quality of the original video. In this discussion we propose the method for embedding the signature data into separate video frames by the use of block Discrete Cosine Transform, In this discussion we consider the applications which require comparatively and significantly larger amount of embedding. Because of redundancies introduced during embedding in the data, hiding large amount of data will enable robustness in the watermarks. To differentiate our process from typically available watermarking, we use the notations video in video, data hiding, and digital watermarking. Let us consider an example, while the real time video data transfer where in many cases the watermarks can be accepted, to make the overall communication secure the signature data to which we are going to embed in the videos should not be visible to attackers. ~l>ROCEEDINGS OF WORLD ACADEMY OF SCIENCE. ENGINEERING AND TECHNOLOGY VOLUME 36 DECEMBER 2008 ISSN 2070-3740