The DLNA Certification and Logo Program is designed to ensure that DLNA Certified products have implemented the features necessary to comply with the DLNA Guidelines, and that they will in fact interoperate with other similar devices when connected to those devices in a consumer's home environment. The DLNA Certification and Logo Program enables companies to certify their products through a well-defined and rigorous process. Y Philips 2.1 Home theater HTS5220/51, Blu-Ray player, BD-R, BD-RE, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RW, Blu-Ray video, CD video, SVCD, AVCHD, DIVX, MKV, MPEG1, MPEG2, MPEG4, WMV, XVID, NTSC, PAL, Action, Concert, Drama Philips 2.1 Home theater HTS5220/51. Optical disc player type: Blu-Ray player, Disc types supported: BD-R, BD-RE, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RW, Playback disc formats: Blu-Ray video, CD video, SVCD. Video formats supported: AVCHD, DIVX, MKV, MPEG1, MPEG2, MPEG4, WMV, XVID, Analog signal format system: NTSC, PAL, Movie modes: Action, Concert, Drama. Audio output channels: 2.1 channels, RMS rated power: 400 W, Audio decoders: Dolby Digital 5.1, Dolby Digital Plus, Dolby Pro Logic II, Dolby TrueHD, DTS, DTS 96/24. Satellite speaker frequency range: 150 - 20000 Hz, Satellite speaker impedance: 6 Ω. Subwoofer type: Passive subwoofer, Subwoofer frequency range: 40 - 150 Hz, Subwoofer impedance: 3 Ω