Panasonic DVD-RP56 Operating Instructions Manual

25ReferenceRQT6012I/P/BMPEG 2, the video compression standard adopted for use with DVD-Video, codes frames using these 3 picture types.I: Intra coded picture (I-picture)This is the standard picture and is a complete picture in itself.This means it has the best picture quality and is the best to usewhen adjusting the picture.P: Predictive coded picture (P-picture)This picture is calculated based on past I or P-pictures.B: Bidirectionally-predictive coded picture (B-picture)This picture is calculated by comparing past and future I and P-pictures so it has the lowest volume of information.Linear PCM (pulse code modulation)PCM is the usual digital method used for music CDs. DVDs have agreater volume so they use linear PCM, which has a higher samplingrate. Compressed PCM signals are called packed PCM (PPCM).MP3A method of compressing audio, MPEG Audio Layer 3 (MP3) allowsaudio to be reduced to up to one tenth its original size without overtlyhurting audio quality.When creating MP3 files to play on this unit³Disc formats: ISO9660 level 1 and level 2 (except for extended for-mats)Files: MP3 files with the suffix “.mp3” or “.MP3”³To have this unit play files in a certain order, prefix folder and filenames with numbers in the order you want to play them. This maynot work in all cases.³This unit is compatible with multi-session but if there are a lot ofsessions it takes more time for play to start. Keep the number ofsessions to a minimum to avoid this.Playback controlIf a Video CD has “playback control” written on it or its jacket, itmeans that particular scenes or information can be selected for view-ing interactively with the television using the menu screen. This unitcan play Video CDs with playback control.Using menus to control play of a Video CD is called “menu play” inthese operating instructions.Title/ChapterDVDs are divided up into large sections, titles, and smaller sections,chapters. The numbers allocated to these sections are called titlenumbers and chapter numbers.TrackVideo CDs and CDs are divided up into sections called tracks, andthe numbers allocated to these sections are called track numbers.BitstreamThis is the digital form of multiple channel audio data (e.g., 5.1 chan-nel) before it is decoded into its various channels.Dolby DigitalThis is a method of coding digital signals developed by Dolby Labora-tories. Apart from stereo (2-channel) audio, these signals can also be5.1-channel audio. A large amount of audio information can be re-corded on one disc using this method.Dolby Pro LogicA surround system where a 4-channel audio track is recorded as2 channels and then is restored to 4 channels for play. The surroundchannel is monaural and can reproduce up to 7 kHz.DTS (Digital Theater Systems)This surround system is used in many movie theaters around theworld. There is good separation between the channels, so realisticsound effects are possible.Dynamic rangeDynamic range is the difference between the lowest level of soundthat can be heard above the noise of the equipment and the highestlevel of sound before distortion occurs.Film and videoDVDs are recorded using either film or video. Usually, film is record-ed at 24 frames per second, the rate movies are filmed at, while videois recorded at 30 frames per second.FrameFrames are the still pictures that go together to make a movingpicture. There are about 30 frames shown each second.Interlace and progressive outputNTSC, the video signal standard, has 480 interlaced (i) scan lines,whereas progressive scanning uses twice the number of scan lines.This is called 480p. The 480i video signals output from this unit’sCOMPONENT VIDEO OUT terminals (Y, PB , PR) allow you to enjoyhigher quality pictures than if the signals were output from the videooutput terminal or S VIDEO OUT terminal. The COMPONENTVIDEO OUT terminals are also able to handle 480p (progressive)video signals which are of even greater resolution.Glossary“DTS” and “DTS Digital Out” are trademarks of Digital TheaterSystems, Inc.“DTS” and “DTS Digital Surround” are registered trademarksof Digital Theater Systems, Inc.Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol are trademarksof Dolby Laboratories.