Explanation of Terms

A

AAC (Advanced Audio Coding)

This is an internationally standardized audio data compression scheme. It has a compression ratio 1.4 times higher than the “MP3” audio compression scheme adopted for “MPEG-1”.

Aspect ratio

This is the length and width ratio of the TV screen. The conventional TV screen’s ratio is 4:3 and a wide screen TV’s screen ratio is 16:9.

Audio commentary

This is an audio program included as a bonus feature in a DVD-Video or BD-Video. It uses a multi- audio function to provide an audio explanation or commentary by members of the crew or director, etc. to accompany the video.

B

BD-J (Blu-ray Disc Java)

BD-Video offer fun software with more interactive functions (games) that use Java applications.

BD-Live™

The unit can be connected to the Internet to enjoy a number of features, including additional contents such as special video or subtitles, games, etc.

Bit rate

This is the amount of video or audio data recorded on a disc that is read in one second.

Blu-ray disc

Blu-ray discs can record high-definition video movies of up to 25 GB for single-sided single-layer discs or 50 GB for single-sided dual-layer discs.

Bonus View

Special images for BD-Video. It includes comments from the movie director, simultaneously developing sub-stories, and images from different angles.

C

Chapter

This is a break intended by the producer, who organizes the titles of BD or DVD-Video. The chapter search function searches for the beginning of this break.

D

Deep Color

This technology allows expression of more colors than the conventional 8-bit and can reproduce more natural colors without any color streaking.

Default Gateway

This device is the entry and exit point between an internal network and an external network (Internet, etc.).

DHCP (Dynamic Host Configuration Protocol) This function assigns IP addresses automatically to network devices.

DivX

This is a video codec (video compression/ decompression software) developed by DivX, Inc. The compression technology is based on “MPEG- 4 Part 2” (known as “MPEG-4 ASP”). It allows along video to be compressed into a small file while maintaining a high-quality image.

It is available in the free “DivX” version or the paid “DivX PRO”version.

DLNA

An abbreviation of Digital Living Network Alliance. An industry group that was established to decide specifications for the mutual connection of audio visual devices and computers in a home network and the mutual utilization of music, photo and video data.

This unit is based on DLNA Home Networked Device Interoperability Guidelines.

DNS (Domain Name System)

A system that matches host names on the Internet to IP addresses.

Dolby Digital (5.1-ch Surround)

This is a stereophonic effect developed by Dolby Laboratories. This is a maximum of 5.1 channels, independent multi-channel audio system.

Dolby Digital Plus

This is an extended version of Dolby Digital and is a high sound quality, digital audio technology adopted as an optional audio for Blu-ray discs.

Dolby TrueHD

This lossless coding technology is adopted as an optional audio for Blu-ray disc and supports 7.1 channels.

Downmix

This function converts the number of channels of surround audio to less channels for playback.

DTS

This is an abbreviation of Digital Theater System, which is a digital audio system developed by DTS. When playing audio on this system while connected to a device such as a DTS amplifier, accurate sound field position and realistic sound effects can be obtained, making you feel like you are in a movie theater.

DTS-HD

This audio technology provides an enhanced functionality and a higher quality of sound than conventional DTS and is adopted as an optional audio for Blu-ray disc. This technology supports multi-channel, high data transfer speed, high sampling-frequency, and lossless audio playback. A maximum of 7.1 channels are supported on Blu-ray discs.

Dynamic range

The difference between the maximum, undistorted sound level and the minimum sound level that is discernible above the noise emitted by the device.

F

Finalizing

This process enables DVD/CD recorded with a recorder to be played by other players.

H

HDCP

When transmitting digital signals between devices, this copyright protection technology encrypts the signals to prevent content from being copied without authorization.

HDMI

This is an abbreviation of High-Definition Multimedia Interface, which is an AV digital interface that can be connected to a TV or amplifier. Video signal and audio signal can be connected with 1 cable.

I

Interlacing (interlaced scanning)

This conventional method used to project images on a TV displays 1 frame of image in half and half, respectively as 2 fields.

Interactive audio

This is audio recorded in the titles of BD-Video, such as clicking sounds made during operations.

IP Address

An identification number that is assigned to each network device.

J

JPEG (Joint Photo graphic Experts Group)

This is a still picture data compression standard. Its ability to reduce the size of a file with relatively little deterioration in image quality means that it is widely used for storing images in video cameras, etc.

L

LAN (Local Area Network)

A wired or wireless network that connects devices together.

Linear PCM

This is an uncompressed PCM (Pulse Code Modulation) signal. This is the same system as the CD audio but uses 192 kHz, 96 kHz, and 48 kHz sampling frequencies on BD or DVD and provides higher sound quality than CD.

M

MAC Address

A unique identification number for network devices such as LAN cards.

MP3 (MPEG AudioPlayer 3)

This is an internationally standardized audio data compression scheme, using the “MPEG-1” video compression standard. It compresses the data volume to about one eleventh its original size while maintaining sound quality equivalent to a music CD.

MPEG

This is an abbreviation of Moving Picture Experts Group, which is an international standard of the moving picture audio compression method. Images on BD and DVD are recorded using this method.

P

Picture-in-picture

This BD-Video function allows you to view scenes, such as the making of or commentary on the movie, in the secondary video while viewing the main story in the primary video.

version Basic

version Advanced

Information

DVD

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