Philips CD-i the FW380i, an integrated mini-stereo and CD-i player; the 21TCDi30, a television with a built-in CD-i device; and the CD-i 180/181/182 modular system, the first CD-i system produced in collaboration with Kyocera in 1988, before the actual debut of CD-i. In addition to Philips, several manufacturers produced CD-i players, including Philips subsidiary Magnavox, GoldStar / LG Electronics, Digital Video Systems, Memorex, Grundig, Saab Electric, Sony (Intelligent Discman, a hybrid home/portable CD-i player), Kyocera, NBS, Highscreen, and Bang & Olufsen, who produced a television with a built-in CD-i device (Beocenter AV5). Recognizing the growing need among marketers for networked multimedia, Philips
Video CD audio frequency range is limited to those sounds most clearly heard by the human ear. The VCD standard also features the option of DVD-quality still images/slide shows with audio, at resolutions of 704×480 (NTSC) or 704×576 (PAL/SECAM). Version 2.0 also adds the playback control (PBC), featuring a simple menu like DVD-Video. Shortly before the advent of White Book VCD, Philips started releasing movies in the Green Book CD-i format, calling the subformat CD-i Digital Video (CD-i DV). While these used a similar format (MPEG-1), due to minor differences between the standards these discs are not compatible with VCD players. Philips'