Digital technology is changing everything—especially the marketing of entertainment. DVD-Audio has the music industry excited about interactive features like artists' bios, still pictures, and other as-yet unimagined marketing opportunities. Free MP3 audio files are being used by some music companies as promotional tools for new releases.

Editor's Note: The photos in this article were taken last week by Mr. Korostyshevski.

Last week, NetTV, which markets progressive-scan digital televisions and set-top boxes with integrated DVD-ROM players, announced that the company's High-Resolution DVD and digital television will be showcased at the DVD PRO Conference & Exhibition, to be held later this week in San Francisco. NetTV claims it is building digital-entertainment systems that combine progressive-scan video with Dolby Digital 5.1-channel audio. The company's products include the ExtremeDVD digital entertainment set-top box and DTV Series digital televisions (29, 34, and 38 inches).

Copyright hysteria is one of the entertainment industry's longest-running programs. Last week's episode featured an announcement by the recently formed Advanced Television Copyright Coalition (ATCC) that the group would exert legal pressure on TiVo, Inc., and RePlay Networks, Inc., two Silicon Valley-based makers of personal video recorders (PVRs). These are hard-disk-based video recorders that allow users to easily shift viewing times and instantly zip past commercials if they wish. The machines' manufacturers will be asked to sign licensing agreements for the use of the group members' content.