A method for data processing, the method comprising: in a receiver (130, 200): receiving, in a compressed video stream (120, 220, 300) comprising a plurality of video frames, a default version for each portion of each of said plurality of video frames in said compressed video stream, and an alternative version and corresponding watermark control information for one or more portions of one or more of said plurality of video frames in said compressed video stream; determining, for the one or more portions, the default version or the corresponding alternative version that should be utilized for decoding said received compressed video stream according to information provided in said corresponding watermark control information and according to specific information locally associated with said receiver; and selecting said determined version for each of said one or more portions for decoding said received compressed video stream by modifying said received compressed video stream; wherein, according to said information provided in the corresponding watermark control information, the determination step is based on model type, postal zip code, video connection type such as HDMI, component or s-video, and/or version of the system which are associated with the receiver; and wherein said default version comprises video data with no watermark, and said alternative version comprises said video data with a watermark, or said default version comprises video data with one type of watermark, and said alternative version comprises said video data with a different type of watermark. in a receiver (130, 200): receiving, in a compressed video stream (120, 220, 300) comprising a plurality of video frames, a default version for each portion of each of said plurality of video frames in said compressed video stream, and an alternative version and corresponding watermark control information for one or more portions of one or more of said plurality of video frames in said compressed video stream; determining, for the one or more portions, the default version or the corresponding alternative version that should be utilized for decoding said received compressed video stream according to information provided in said corresponding watermark control information and according to specific information locally associated with said receiver; and selecting said determined version for each of said one or more portions for decoding said received compressed video stream by modifying said received compressed video stream; wherein, according to said information provided in the corresponding watermark control information, the determination step is based on model type, postal zip code, video connection type such as HDMI, component or s-video, and/or version of the system which are associated with the receiver; and wherein said default version comprises video data with no watermark, and receiving, in a compressed video stream (120, 220, 300) comprising a plurality of video frames, a default version for each portion of each of said plurality of video frames in said compressed video stream, and an alternative version and corresponding watermark control information for one or more portions of one or more of said plurality of video frames in said compressed video stream; determining, for the one or more portions, the default version or the corresponding alternative version that should be utilized for decoding said received compressed video stream according to information provided in said corresponding watermark control information and according to specific information locally associated with said receiver; and selecting said determined version for each of said one or more portions for decoding said received compressed video stream by modifying said received compressed video stream; wherein, according to said information provided in the corresponding watermark control information, the determination step is based on model type, postal zip code, video connection type such as HDMI, component or s-video, and/or version of the system which are associated with the receiver; and wherein said default version comprises video data with no watermark, and said alternative version comprises said video data with a watermark, or said default version comprises video data with one type of watermark, and said alternative version comprises said video data with a different type of watermark.