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Super Video Compact Disc Super Video Compact Disc A Technical Explanation 3122 783 0081 1 1 21599 Super Video CD History · Demonstration players and discs to promote the standard. CD is one of the major new · Authoring tools to produce demo, technological steps of this century. test, and commercial discs. Beginning as a pure , high-quality sound For checking the compliance and reproduction system, it rapidly MPEG2 on compatibility of players and discs is developed into a whole family of needed: COMPACT DISC systems, with applications extending across to multimedia data storage and · A set ( suite ) of test discs with test distribution. The CD-ROM XA format each function described in the There is a market need for a makes it possible to combine normal standard at least once and if standardized full digital Compact computer data files with real-time achievable also the most important Disc based video reproduction multimedia files offering an additional combinations of content and system. 14% capacity. The format is platform applications within the scope of the independent to allow additional CD-DA standard. These discs are used for tracks ( CD-Extra) and to be played on a player development and The Super Video-CD standard multimedia-computer. All new formats manufacturing, as well as for upgrades the current Video-CD since 1990 have been based on the XA testing players that give problems format. It utilizes better Video and format. in the market. · A prototype test player, to play Audio Quality. It also standard demo and test discs, and for player includes extensions for surround Standardisation production development. sound multi-channel audio, The purpose for a formal CD disc · A disc verifier tool to check if provisions for PC playback, and standard is to achieve full worldwide authoring systems and produced is prepared for further future compatibility between Players and discs are compliant with the improvements. It is also based on Discs, so that all discs can play on all standard. variable bit rate (VBR) MPEG2 players. The standard is a disc format coding for more efficient use of specification, specifying the physical, White Book standard optical, disc organization, data retrieval, the disc capacity. The first MPEG-1 application introduced content formats, metadata, and API’s on in the world was Karaoke-CD in Japan, the disc. It is an implicit player or later followed by Digital Video on CD-i authoring systems specification. How to The objective of this standards is and Video-CD in USA and Europe. implement a player is up to each further to ensure the best price/ Today the largest Video-CD market is in manufacturer, but a customer is performance combination China. expecting that the player (or drive) can possible with the latest state of support at least all the mandatory disc The Video-CD system adds a new the art technology available, and functions and features. dimension to the film and music video business. It offers up to 74 minutes of to offer more flexibility for For the format to become successful and motion video combined with CD quality publishers to use the best video/ accepted, it must fulfill the given market stereo sound packed onto a one 12 cm audio quality given its limited and user requirements next to the optical disc. For music video this allows availability of attractive publishing bandwidth and disc capacity. for the same amount of music material content. as on a conventional CD-Digital Audio For the introduction of a new standard is Super Video-CD is in the process disc, but now also with digital video. A needed: full length feature film up to 140 min can of IEC standardisation. (IEC · A complete detailed specification. be offered in a standard 2 disc package. 62107). All essential parameters have to be Surround sound, direct chapter access, well defined. single step and other sophisticated · Agreement on the specification with functions are available. all involved partners and The basic features of Video-CD are; stakeholders. Disc formats Partners Features User benefits CD Digital Audio 1983 Philips, Sony 2 x 16 bit PCM coded audio, 99 ease of use, sound quality, robust, small (CD-DA) tracks, format, durable 72 minutes playing time CD ROM 1985 Philips, DEC reliable 660 MB storage ease of use, compact, fast read, multimedia files, games CD-ROM XA based formats CD Interactive 1990 Philips, Sony, Microware Interactive User control Interactive TV programs, games (CD-i) Photo CD 1992 Philips, Kodak CD Recordable archiving, TV view, zoom, desktop authoring on PC Video CD 1.1 1993 Philips, JVC Movies Karaoke smaller disc, lower cost, digital, multi-platform Video CD 2.0 1995 Philips, Sony, Matsushita, pictures, menus, playlists HiRes pictures, interactive playback control JVC Video CD-ROM 1996 Philips, Sony, Matsushita, PC / MAC program files plays on MPC with SW MPEG decoder, no JVC extra costs Video CD-Internet 1997 Philips, Sony, Matsushita, Hybrid publishing on CD and WWW fast access to multimedia (a/v) files 3122 783 0081 1 JVC, Hitachi Super Video CD 1998 Philips, Sony, Matsushita, MPEG-2 video, VBR, overlay better video resolution, subtitling, multilingual 2 21599 JVC graphics Super Video CD Super Video CD specifications stream is typically 45%, which is used IEC62107 for the resolution improvement. MPEG-2 Video CD-ROM CD-ROM characteristics MPEG 2 Much better picture quality is achieved volume and file system data interchange coding A/V coding by using MPEG-2 instead of MPEG-1 ISO9660 ISO 10149 (Yellow Book) ISO 13818-1/2/3 coding, and by interlaced double vertical resolution of 480 lines for NTSC and 576 lines for PAL. CD characteristics MPEG 1 Two Audio streams physical and logical coding Audio coding One extra MPEG audio stream has ISO 908 (Red Book) ISO 111172-3 been added for a second language. The Audio streams are selectable by the user, and VBR coding is used for a more CD-DA quality audio ( stereo / 2 mono ), also includes extensions for surround efficient compression. Full quality video ( MPEG-1 ), PAL / sound multi-channel audio, more NTSC compatible format, Playing time interactivity, Internet connectivity, PC Surround Sound Multi-channel of 74 minutes per disc, Fast Track ( and playback, and is prepared for further Audio Index ) access, Album support ( multi future improvements. As backward compatible extension in disc ), Multi platform standard. It's also based on using variable bit rate included Movie surround sound MPEG- The system uses the ISO MPEG-1 ( VBR ) MPEG-2 coding for more 2 Multi-Channel (5+1 channels ) coding. standard audio/video coding technology efficient use of the disc capacity. The Overlay Graphics to realize the full screen full motion plying time per disc can vary from 35 New Overlay Graphics for Movie sub- pictures with associated high quality minutes to more than 70 minutes titling and Karaoke lyrics, with up to four audio. The MPEG-1 standard for depending on the average bit rate used. selectable (language / lyrics) sub- compression and decompression of The Super Video CD format is based on channels, and Karaoke highlight color digital video data is an enabling the CD-ROM XA disc format. Super change support. technology that makes it possible to Video CD discs can be played on, Super include full-motion video in consumer, Video CD players, and other compliant computer and communications products hardware and software platforms. It may SVCD disc structure for the first time. The data delivery rate include application programs for a The Disc format is compliant with CD- for a TV studio signal, as specified by variety of platforms. ROM XA, and can be a pre-mastered the international standard CCIR 601, is disc or a CD-Recordable disc. All tracks 165Mbit/sec. For a normal CD the of the Program Area are encoded as delivery rate is 1.4 Mbit/sec. The Improvements CD-ROM XA data tracks. The first track ingenious achievement of MPEG lies in on the disc is a special DATA track with compressing such data rates to within data retrieval information and interactive Improvements of the Super Video CD CD delivery capacity. playback MPEG sequences. The standard specification compared to The Video CD standard admit to use one MPEG-2 streams on disc are recorded VIDEO CD 2.0 standard specification or more tracks (sequences) and well as in MPEG tracks, and are intended to be for entries within a track (sequences). In Variable bitrate (VBR) played sequentially starting from Track this context a track is an A/V sequence The variable bit rate ( VBR ) may vary up #2 . A Karaoke / Music application has with one or more entry points and one to double (2X) speed. For a 2 disc movie normally one track per song. This exit point. This feature allows the title of 110 minutes, the gain of the means that song number 1 is recorded publisher of Music video and Karaoke average bit rate of the MPEG video in Track #2, and song number 2 in Track discs that songs can be selected individual as well as be played in a long Item Super Video CD Video CD 2.0 sequences (e.g. Life concert or movie) Sector rate variable up to 150 Hz ( 2X fixed to 75 Hz where the user can start at a selected speed ) place and continue till the end. CDDA tracks not used optional Data retrieval File locations Fixed locations fixed locations Super Video CD CDI sub-directory not used mandatory The target for this new Super Video CD, Video MPEG-2 MPEG-1 standard is to ensure the best price / bit rate (mbps) variable up to 2.6 1.15 performance combination possible with resolution NTSC (HxV) 480 x 480 352 x 240 the latest state of the art technology resolution PAL (HxV) 480 x 576 352 x 288 Still Picture MPEG-2 MPEG-1 available, and to offer more flexibility for resolution NTSC (HxV) 480 x 480, 704 x 480 352 x 240, 704 x 480 publishers to use the best video / audio resolution PAL (HxV) 480 x 576, 704 x 576 352 x 288, 704 x 576 quality given the limited disc capacity.
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