BD-J
Some BD-Video discs contain Java applications, and these applications are called BD-J. Depending on the BD-J application, you can enjoy various interactive features in addition to playing normal video.
Bitstream
This is the digital form of multi-channel audio data (e.g., 5.1 channel) before it is decoded into its various channels.
CPPM (Content Protection for Prerecorded Media)
A copy protection system used for DVD-Audio files. This unit supports CPPM.
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 multi-channel audio. A large amount of audio information can be recorded on one disc using this method.
Dolby Digital Plus
Multi-channel audio and higher audio quality is made possible using Dolby Digital Plus. Previous Dolby Digital-compatible equipment can play Dolby Digital Plus as Dolby Digital surround audio. BD-Video supports up to 7.1 channel output.
Dolby TrueHD
Dolby TrueHD is a very high quality audio format that reproduces the studio master audio. Previous Dolby Digital-compatible equipment can play Dolby TrueHD as Dolby Digital surround audio. BD-Video supports up to 7.1 channel output.
Down-mixing
This is the process of remixing the multi-channel audio found on some discs into two channels. It is useful when you want to listen to the 5.1-channel audio recorded on DVDs through your television’s speakers. Some discs prohibit down-mixing and this unit can then only output the front two channels.
[DVD-A]Tracks that do not allow down-mixing will not play correctly on this unit except when connecting with an HDMI cable to an amplifier/receiver that meets HDMI standards (ver. 1.1 or later) and is CPPM compatible.
DTS (Digital Theater Systems)
This surround system is used in many movie theaters. There is good separation between the channels, so realistic sound effects are possible.
DTS-HD
DTS-HD is a high-quality, sophisticated audio format used in movie theaters. Previous DTS Digital Surround-compatible equipment can play DTS-HD as DTS Digital Surround audio. BD-Video supports up to 7.1 channel output.
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.
Dynamic range compression means reducing the gap between the loudest and softest sounds. This means you can listen at low volumes but still hear dialog clearly.
Film and video
DVD-Video are recorded using either film or video. This unit can determine which type has been used, then uses the most suitable method of progressive output.
Film: Recorded at 24 frames per second. (Recorded at 30 frames per second as well). Generally appropriate for motion picture films.
Video: Recorded at 30 frames/60 fields per second. Generally appropriate for TV drama programs or animation.
Finalize
A process that makes play of a recorded CD-R, CD-RW, DVD-R, etc. possible on equipment that can play such media.
After finalizing, the disc becomes play-only and you can no longer record or edit.
FrameFieldField
≥A frame still shows two fields, so there may be some blurring, but picture quality is generally better.
≥A field still shows less picture information so it may be rougher, but there is no blurring.
HDCP(High-Bandwidth Digital Content Protection)
HDCP is a type of digital rights management developed for use with HDMI connections, etc. HDCP was developed to protect digital content and prevent unsecured transmissions by using a variety of methods such as encryption and authentication.
HDMI (High-Definition Multimedia Interface)
HDMI is a digital interface for consumer electronic products. Unlike conventional connections, it transmits uncompressed digital video and audio signals on a single cable. This unit supports high- definition video output [720p (750p), 1080i (1125i), 1080p (1125p)] from HDMI AV OUT terminals. To enjoy high-definition video a high definition compatible television is required.
JPEG (Joint Photographic Experts Group)
This is a system used for compressing/decoding color still pictures. If you select JPEG as the storage system on digital cameras, etc., the data will be compressed to 1/10–1/100 of its original size. The benefit of JPEG is less deterioration in picture quality considering the degree of compression.
LPCM (Linear PCM)
These are uncompressed digital signals, similar to those found on CDs.
MP3 (MPEG Audio Layer 3)
An audio compression method that compresses audio to approximately one tenth of its size without any considerable loss of audio quality. You can play MP3 you have recorded onto CD-R and CD-RW.
Pan&Scan/Letterbox
In general, DVD-Video are produced with the intention that they be viewed on a widescreen television (16:9 aspect ratio), so images often don’t fit regular (4:3 aspect ratio) televisions. Two styles of picture, “Pan & Scan” and “Letterbox”, deal with this problem.
Pan&Scan: The sides are cut off so the picture fills the screen.
Letterbox: Black bands appear at the top and bottom of the picture so the picture itself appears in an aspect ratio of 16:9.
Progressive/Interlace
The video signal standard of NTSC has 480 interlaced (i) scan lines, whereas progressive (p) scanning uses twice the number of scan lines, and this is referred to as 480p. Using progressive output, you can enjoy watching high resolution video recorded on disc, such as DVD-Video. Please note that your television must be capable of progressive output to enjoy progressive video.
Sampling frequency
Sampling is the process of converting the heights of sound wave (analog signal) samples taken at set periods into digits (digital encoding). Sampling frequency is the number of samples taken per second, so larger numbers mean more faithful reproduction of the original sound.
1080i (1125i)
In one high definition image, 1080 (1125) alternating scan lines pass every 1/60th of a second to create an interlace image. Because 1080i (1125i) more than doubles current television broadcasts of 480i, the detail is much clearer and creates a more realistic and rich image.
1080p (1125p)
In one high definition image, 1080 (1125) scan lines pass at the same time every 1/60th of a second to create a progressive image. Since progressive video does not alternate scan lines like interlace, there is a minimal amount of screen flicker.
720p (750p)
In one high definition image, 720 (750) scan lines pass at the same time every 1/60th of a second to create a progressive image. Since progressive video does not alternate scan lines like interlace, there is a minimal amount of screen flicker.
