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Disc-related terms
DVD ±R / DVD ±RW
DVD -R and DVD +R are two different standards for
recordable DVD drives and discs. This format allows
information to be recorded onto the DVD disc only
once. DVD +RW and DVD -RW are two standards for
re-writable media, meaning the DVD content can be
erased and re-recorded. Single-sided discs can hold
4.38 Gigabytes and double-sided discs hold twice as
much. There are no dual layer single sided recordable
discs.
MPEG
MPEG is an international standard for video and audio
compression. Provides for multichannel surround
sound coding such as PCM, Dolby Digital, DTS and
MPEG audio.
MP3
MP3 is a popular compression format used for digital
audio files that yields very high near-CD quality.
WMA
Windows media audio file. A type of coding / decoding
developed by Microsoft Corp.
JPEG
Joint Pictures Expert Group. JPEG is a compressed
file format that allows you to save images with no limit
on the number of colors.
Title (DVD only)
A title is generally a distinct section of a DVD disc. For
example the main feature could be title 1, a
documentary describing how the film was made could
be title 2, and cast interviews could be title 3. Each
title is assigned a reference number enabling you to
locate it easily.
Chapter (DVD only)
A chapter is a segment of a title such as a scene in a
film or one interview in a series. Each chapter is
assigned a chapter number, enabling you to locate the
chapter you want. Depending on the disc, chapters
may not be recorded.
Track
Adistinct element of audio/visual information, such as
sound track for a specific language (DVD), or a
musical piece audio CD. Each track is assigned a
track number, enabling you to locate the track you
want. DVD discs allow one track of video (with
multiple angles) and several tracks of audio.