IEC 62107:2000 pdf download
IEC 62107:2000 pdf download.Super video compact disc – Disc-interchange system-specification.
A disc with extensions should play on a playback device only supporting the mandatory functionality of the specification, and a playback device supporting some or all extensions should also play discs without these extensions.
The specification also includes optional meta-data, intended to support improved performance of a playback device. It is recommended that optional items be recorded on the disc, but it is not required that they be included.
4 SuperVCD introduction
4.1 System overview
Super VCD is a reproduction system for presenting full motion pictures with associated aucjio by using the Compact Disc format. The system uses the ISO?IEC MPEG2 standard definitions to compress the video, still picture and audio information for full screen TV quality pictures together with associated high-quality audio. The SuperVCD disc can also carry high-quality still pictures with associated audio and a Play Sequence Descriptor file for interactive control of the playback of still and motion pictures.
Variable bit rate (VBR) MPEG coding is used for more efficient use of the disc capacity. The playing time for a fully recorded disc can vary from 35 mm to more than 70 mEn depending on the average bit rate used.
The SuperVCD format is based on the CD-ROM Mode 2 disc format. Super VCD discs can be played on SuperVCD playback devices, and other compliant hardware and software platforms.
4.2 SuperVCD system reference model
The SuperVCD system consists of a SuperVCD disc and the playback device, normally a SuperVCD player.
3.2.2 Form 1 SuperVCD sector ECC and EDC fields
The EDC and ECC fields are defined as for CD-ROM Mode 1, with the following exceptions.
— The EDC shall be calculated from the beginning of the Subheader field to the end of the 2 048 byte User Data field.
— Parity P of ihe ECC shall be calculated from the beginning of the Header field to the end of the EDC field as if the content 01 the Header field were all zero.
— Parity 0 of the ECC shall be calculated from the beginning of the Header field to the end of the EDC field as if the content of the Header field were all zero.
5.2.3 Form 2 SuperVCD sector EDC field
The EDC field is defined as for CD-ROM Mode 1 with the following exception.
— The EDC shall be calculated from the beginning of the Subheader field to the end of the 2 324 byte User Data field.
5.3 SuperVCD DATA track format
This shall be the first track of the disc.
The DATA TRACK starts with a pre•gap of 150 Empty sectors.
Data files use Mode 2, Form 1 (2 046 byte sector) DATA sectors, and MPEG files use Mode 2, Form 2 (2 324 bytes) MPEG sectors.
The DATA TRACK contains ISO 9660 file management. SuperVCD Information files, Segment Play Item Area and, optionally, other program data files.
5.3.2 Segment Play Item (SPI) area
This area in the DATA track contains Segment Play Items as described in 6.5.1.
A Segment Play Item (SPI) Is a SuperVCD MPEG2 Program Stream stored In a Data Track. Intended for Interactive playback under control of the Play Sequence Descriptor.
Segment Play Items are not accessed directly by the normal track playing mechanism, but indirectly by interpretation of the Play Sequence Descriptor (PSD).
The SPI is stored into contiguous segments 01150 sectors in length and is addressed by a segment number. The length of the SPI Area shall be any integer number of segments ranging from 1 to a maximum of 1 980. The segments are numbered consecutively starting
from No. 1. which is the first segment.
The start sector address of the SPI Area Is indicated In the First Segment Address entry of
“INFO.SVD”.
Segment Play Items shall conform to Program Stream coding as described in the Program Stream format Section.
Segment Play Items may occupy one or more segments. and the data shall start at a segment boundary. The SPI data Is padded with Empty Sctors to the end ol a whole segment. An SPI is identified by its SPI number, which is equal to the number 01 its first segment. Only
segment numbers that correspond to the first segments of Segment Play Items and are in the range 1.1980 are valid SPI numbers. The figure below gives an example of the Segment Play Items in the SPI Area.
