Abstract: A novel process and system for flexibly adding supplemental digital program content such as, for example, transactional advertising content, games, polls, contests, interactive music videos, and e-commerce content generally and the like, into pre-prepared digital media files, such as an MP3 audio file or the like, for playback by digital playback apparatus, wherein the pre-prepared media file is modified by embedding therein executable code representing such supplemental program content, and enabling the playback apparatus to decode and execute the presentation of the supplemental program material as an addition to the playback of the pre-prepared media file content.

Abstract: A novel process and system for flexibly adding supplemental digital program content such as, for example, transactional advertising content, games, polls, contests, interactive music videos, and e-commerce content generally and the like, into pre-prepared digital media files, such as an MP3 audio file or the like, for playback by digital playback apparatus, wherein the pre-prepared media file is modified by embedding therein executable code representing such supplemental program content, and enabling the playback apparatus to decode and execute the presentation of the supplemental program material as an addition to the playback of the pre-prepared media file content.

Abstract: A novel process and system for flexibly adding supplemental digital program content such as, for example, transactional advertising content, games, polls, contests, interactive music videos, and e-commerce content generally and the like, into pre-prepared digital media files, such as an MP3 audio file or the like, for playback by digital playback apparatus, wherein the pre--prepared media file is modified by embedding therein executable code representing such supplemental program content, and enabling the playback apparatus to decode and execute the presentation of the supplemental program material as an addition to the playback of the pre-prepared media file content.

Abstract: A novel technique for high-bandwidth steganographic embedding of supplemental data in a series of digital signals or measurements, such as taken from analog data streams or subsampled and/or transformed digital data, wherein the series of measurements are derived through functional transformations and involving quantization and/or aliasing, with the supplemental data bits modulating or modifying the quantized and/or aliased components with only slight adjustments thereof to embed the supplemental data without substantially affecting the quality of the measurements; and all, preferably, through not exclusively, with the use of least-significant-bit parity encoding designed to choose the appropriate components to be so modulated or modified

Abstract: A novel process and system for enabling the seamless and facile embedding of relatively large quantities of supplemental digital data into pre-prepared digital media files (audio, image, video, 3D, volumetric and multimedia and the like) by compressing such files and encoding them into sets of coefficient representations (preferably frequency-domain coefficient representations) of the pre-prepared media file information, and embedding bits of the supplemental digital data at selected coefficients, preferably, though not exclusively, using the least significant bit of the selected coefficients, and with stenographic encoding processes.