What are the video details?
DVD-Video is an application of DVD-ROM. DVD-Video is also an application of MPEG-2. This means the DVD format defines subsets of these standards to be applied in practice as DVD-Video. DVD-ROM can contain any desired digital information, but DVD-Video is limited to certain data types designed for television reproduction. A disc has one track (stream) of MPEG-2 constant bit rate (CBR) or variable bit rate (VBR) compressed digital video. A restricted version of MPEG-2 Main Profile at Main Level (MP@ML) is used. SP@ML is also supported. MPEG-1 CBR and VBR video is also allowed. 525/60 (NTSC, 29.97 interlaced frames/sec) and 625/50 (PAL, 25 interlaced frames/sec) video systems are supported. Coded frame rates of 24 fps progressive from film, 25 fps interlaced from PAL video, and 29.97 fps interlaced from NTSC video are typical. In the case of 24 fps source, the encoder embeds MPEG-2 repeat_first_field flags into the video stream to make the decoder either perform 3-2 pulldown for 60 (59.94
A disc has one track (stream) of MPEG-2 constant bitrate (CBR) or variable bitrate (VBR) compressed digital video. A limited version of MPEG-2 Main Profile at Main Level (MP@ML) is used. MPEG-1 CBR video is also supported. 525/60 (NTSC, 29.97 frames/sec) and 625/50 (PAL, 25 frames/sec) video systems are supported. Picture dimensions are max 720×480 (29.97 frames/sec) or 720×576 (25 frames/sec). Maximum bitrate is 9.8 Mb/s (but will always be less to allow for audio). The “average” bitrate is 3.5 but depends entirely on the length, quality, amount of audio, etc. This is approximately a 70:1 reduction from original 243 Mb/s CCIR 601 source. (But note that MPEG uses 4:2:0 format, which is a 75% reduction from 4:2:2 before compression) Raw channel data is read off the disc at a constant 26.16 Mb/s. After demodulation it’s down to 13.08 Mb/s. After error correction, the user data stream goes into the track buffer at a constant 11.08 Mb/s. The track buffer feeds system stream data out at a v
DVD-Video is an application of DVD-ROM. DVD-Video is also an application of MPEG-2. This means the DVD format defines subsets of these standards to be applied in practice as DVD-Video. DVD-ROM can contain any desired digital information, but DVD-Video is limited to certain data types designed for television reproduction. A disc has one track (stream) of MPEG-2 constant bit rate (CBR) or variable bit rate (VBR) compressed digital video. A limited version of MPEG-2 Main Profile at Main Level (MP@ML) is used. SP@ML is also supported. MPEG-1 CBR and VBR video is also allowed. 525/60 (NTSC, 29.97 interlaced frames/sec) and 625/50 (PAL, 25 interlaced frames/sec) video systems are supported. Coded frame rates of 24 fps progressive or interlaced from film, 25 fps interlaced from PAL video, and 29.97 fps interlaced from NTSC video are supported. In the case of 24 fps source, the encoder embeds MPEG-2 repeat_first_field flags into the video stream to make the decoder either perform 3-2 pulldown
