DVD Comparison in Software

Printing Quick Response Code in Software DVD Comparison

White Book (Video CD 20) Video Component digital MPEG-1 74 min Super Video CD (IEC-62107) Component digital MPEG-2 ~About 70 min

DVD-Video Component digital MPEG-2 2+ h/side (single layer), 4+ h/side (dual layer) Anamorphic ~30:1 (from 8-bit 4:2:0) Macrovision, CGMS-A CGMS-D

84,480 pels (352 240)

230,400 pels (480 480)

345,600 pels (720 480)

414,720 pels (720 576) 2997 (525/60), 25 (625/50) 2-bits/pel; 16-color/ 16-transparency CLUTs 720 720 480 (525/60), 576 (625/50)

Still picture (I frame)

704 704

480 (525/60), 576 (625/50)

704 704

480 (525/60), 576 (625/50)

Two tracks of mono, Eight tracks of up to dual-mono, stereo, 8 channels each or 51-channels Not available 16/20/24-bit 48/96kHz LPCM 64 to 448 kbps Dolby Digital (48 kHz) or 64 to 912 kbps MPEG-2 (48 (kHz) or 64 to 384 kbps MPEG-1 Layer II (441 kHz) continues

16-bit 441- kHz LPCM (if no video) 224 kbps MPEG1 Layer II (441 kHz)

32 to 384 kbps VBR MPEG-1 Layer II or MPEG2 multichannel (441 kHz)

White Book (Video CD 20) Karaoke features Two channels Super Video CD (IEC-62107) Two channels, lyrics overlay 96 dB 96 dB

8

DVD-Video Five channels, lyrics overlay 96 to 144 dB 96/120/144 dB (16/20/24-bit PCM), 120 dB (Dolby Digital) 4 to 22,000 Hz (48 kHz), 4 to 44,000 Hz (96 kHz) Max 98 Mbps

Frequency ( 03 dB)

4 to 20,000 Hz (441 kHz)

4 to 20,000 Hz (441 kHz)

Anamorphic video could be put on video CDs, but the players cannot re-format it for 4:3 televisions

MPEG-1 enables any coded picture rate to displayed at either 2997 or 25 fps when decoded MPEG-2 requires the pulldown rate to be determined at encoding time

Compared with DVD, CD-i has a few advantages and disadvantages not shared by Video CD These are covered first, followed by the remaining comparisons with Video CD Features The interactivity of CD-i goes far beyond that of DVD-Video CD-i players are actually special-purpose computers running a real-time operating system (a derivative of OS-9) They contain a Motorola 68000 processor, the same chip that powered early Macintosh computers Additional specialized processors provide support for graphics and video CD-i players have memory for data storage, optional keyboards, and even optional modems for connecting to the Internet CD-i supports fully interactive multimedia programs and can generate text and graphics in response to user input DVD-Video has limited interactivity using only premade text and graphics CD-i was the first consumer device to use MPEG-1 video CDi players can decode multiple MPEG-1 video channels from a single multiplexed stream for multiple video windows of selectable sizes and aspect ratios CD-i has up to 16 audio tracks and four audio formats, for up to 18 hours of audio per disc Full- or partial-screen images can be overlaid with

transparency on motion video with hardware-rendered transition effects such as dissolves, wipes, slides, and scrolls Text overlay can be generated on the fly, including up to 32 stored subpicture streams, memory-resident pop-up menus, and real-time graphics A computerlike graphic interface with an onscreen cursor is controlled by a wireless remote control CD-i features are impressive On the other hand, a DVD designed for use in a PC or video game console can exceed the level of interactivity and video quality provided by CD-i Availability and Support CD-i hardware and software was almost entirely produced or funded by Philips and Korea s LG Electronics with a handful of independent hardware and software licensees on the side About half a million players were sold in the United States and about 2 million worldwide More than 70 manufacturers produce DVD-Video players, not counting hundreds of manufacturers of DVD-capable computers Hundreds of companies and independent developers are creating interactive DVD-Video titles despite the format s limited capabilities