Kompernass KH 6509, KH 6508 Glossary/Index, What are DVDs, VCDs and S-VCDs?, Playback Control PBC

17. Glossary/Index

What are DVDs, VCDs and S-VCDs?

DVD stands for “Digital Versatile Disc”. They are used to store audio and video data. They are available in the formats 8 cm and 12 cm (diameter) DVDs offer a signifi- cantly higher storage capacity than CD-Rs/CD-RWs – a playback duration of the stored audio and video data of up to eight hours.

VCDs/S-VCDs

“Video-CD“ (VCD) and “Super Video-CD“ (S-VCD) define two processes that save storage space by compressed storage of films on CDs. VCDs and S-VCDs are available in the formats 8 cm and 12 cm (diameter). Their storage capacity is significantly lower than that of DVDs. Conse- quently, the 8 cm format provides a storage capacity for a playback duration of 20 minutes. and the 12 cm format for 74 minutes.

VCDs are available in two versions:

•Version 1.1 VCDs/S-VCDs will only playback audio and video data.

•Version 2.0 VCDs/S-VCDs features PBC (Playback Control) functions; still frames can be reproduced in a high resolu- tion.

Playback Control (PBC)

Version 2.0 VCDs/S-VCDs feature Playback Control (“PBC“). A main menu is available on the VCD/S-VCD to operate the different functions of the VCD/S-VCD.

What are title and chapter?

Titles are the largest video and audio units on DVDs. On many DVDs the (main) film has the title number 01. Further title numbers can be assigned to bonus mate- rial (e.g. film trailers, background information, etc) on many DVDs.

Chapters are the next smallest video and audio units be- low titles. If the title(s) of a DVD/VCD/S-VCD is/are divided into chapters, then these are assigned numbers which can be entered for direct access to the given chapter.

Please note that not all DVDs …

•feature title(s) subdivided into (numbered) chapters,

•and that chapters may also be designed as “scenes”(e.g. in the main menu of DVDs)

What are SCART, S-Video, Composite-Video Progressive Scan and YUV?

Scart

SCART defines a 21-pin, standard plug connection to transmit RGB signals, video signals and S-Video signals, as well as a number of other control and extra signals.

S-Video

Connecting the DVD Player to a television by way of S- Video separates brightness and colour signals to achieve higher picture sharpness and diminish so-called“coloured noise” caused by the superimposition of the coloured, usually intensely saturated, parts of a video picture with an irregular, restless disturbance structure.

Composite-Video

A video signal or FBAS signal where the video signal con- tains both colour and brightness information.

Progressive Scan

Normally, televisions and video projectors are controlled by half pictures or so-called“fields”. This produces clearly visible line structures. Progressive Scan, on the other hand, defines the output of full pictures or so-called ‘”frames” (with this DVD Player at the YPbPr output). Progressive Scan signals can only be processed by appropriate play- back units (primarily large-format television, projectors). Compared with conventional video signals, the picture quality is significantly enhanced.

YUV (Component Video Out)

YUV defines the component signal supplied by this unit to the YPbPr output in the form of half-pictures or so- called “fields”. Normally, this is the best signal for con- trolling large-format televisions and projectors which cannot process Progressive- Scan signals. As with RGB video transmission, YUV is composed of three separate video signals:

•the brightness signal “Y” and

•the two colour differentiation signals “U” and “V”.

Fields (Interlace)/Frames (Progressive Scan)

A standard television picture is composed of 576 visible lines; all odd lines are first shown followed, in alterna- tion, by all even lines, i.e. half-picture or field. Conse- quently, only 30 full pictures or frames (60 fields) can be displayed per second. This method is known as the “Interlace” format.

 Silvercrest KH 6508/KH 6509