PANASONIC PVDF204
Owner's Manual

Glossary
Angle Some DVD discs feature scenes simultaneously shot from different angles. The ANGLE button can be used to view the scene from different angles. (ANGLE Indicator lights up on the unit when a scene recorded from different angles is detected.) Bitstream This is the digital form of multi-channel audio data (e.g., 5.1 channel) before it is decoded into its various channels. Chapter Number Titles are subdivided into numbered sections. You can quickly search for a favorite scene using these numbers. Decoder A decoder restores the coded audio signals on DVDs to normal. This is called decoding. Dolby Digital This is a method of coding digital signals developed by Dolby Laboratories. Apart from stereo (2-channel) audio, these signals can also be multichannel audio. A large amount of audio information can be recorded on one disc using this method. Dolby Pro Logic A surround system where a 4-channel audio track is recorded as 2 channels and then is restored to 4 channels for play. The surround channel is monaural and can reproduce up to 7 kHz. DTS (Digital Theater Systems) This surround system is used in many movie theaters around the world. There is good separation between the channels, so realistic sound effects are possible. Dynamic range Dynamic range is the difference between the lowest level of sound that can be heard above the noise of the equipment and the highest level of sound before distortion occurs. DVD A high-density optical disc on which high-quality pictures and sound have been digitally recorded. DVD incorporates new video compression technology (MPEG II) and high-density recording technology which allow entire movies to be recorded with incredible playback quality. Film and video DVD-Videos are recorded using either film or video. Usually, film is recorded at 24 frames per second, the rate movies are filmed at, while video is recorded at 30 frames per second. Frame still and field still Frames are the still pictures that go together to make a moving picture. There are about 30 frames shown each second. One frame is made up of two fields. A regular television shows these fields one after the other to create frames. A still is shown when you pause a moving picture. A frame still is made up of two alternating fields, so the picture may appear blurred, but overall quality is high. A field still is not blurred, but it has only half the information of a frame still so picture quality is lower. Linear PCM (pulse code modulation) These are uncompressed digital signals, similar to those found on CDs. Regional Code This is a copyright protection measure unique to DVD-Video. There are 6 regional codes worldwide. In order to play a disc encoded with a regional code, the DVD player must be equipped with the same code. Sampling bit number This is the resolution shown in number of bits to determine how faithfully the sampled analog frequency was expressed at the time the signal is converted from analog to digital. Sampling Frequency This is the number of times sampling is performed in (1) second shown in Hz units at the time the signal is converted from analog to digital using the PCM method. The greater the number, the higher the sound quality. Subtitles Written dialogue which appears at the bottom of the screen. Time Number The elapsed play time from the start of a disc or title. Use to quickly find scenes. (May not work with some discs.) Title Number For DVD discs with two or more titles, the title is numbered as title 1, title 2, etc. Track Number Numbers assigned to tracks on CDs to allow specific tracks to be quickly located. V.S.S. Feature Virtual surround sound playback is possible even with only 2 speakers. For example, using this unit�s built-in speakers, the 2 speakers of a connected stereo, etc., you can enjoy a surround sound effect. If the disc was recorded in Dolby Digital 5.1 ch, with just the two front L/R speakers, you will feel as if you are hearing sound from nonexistent speakers on both sides of you. This effect also works with Dolby Digital 2-channel discs.

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