User manual

Glossary
Nero Recode Page 53
Book type
The Book type defines the specification (e.g. DVD-, DVD+, DVD-ROM) of a DVD. Self-
burned DVDs are sometimes not played back by DVD players. This may be due to the fact
that the players either cannot read or have difficulty in reading DVD-, DVD+ or DVD-RW.
With Nero Recode you can set the book type of the self-burned DVD to DVD-ROM to guar-
antee playback.
CABAC
Context Adaptive Binary Arithmetic Coding is a method for arithmetic encoding of digital
video files. CABAC is a component of the encoding standards MPEG-4 AVC and H264. In-
stead of bit sequences of variable length, arithmetic encoding is used, which saves 10% to
20% of the bit rate.
Deinterlace
With the deinterlacing feature, video files with interlacing are converted to full-screen. Mod-
ern televisions do not work with interlacing but with full-screen images.
Decoding
Decoding refers to the conversion of computer-readable audio files (e.g. mp3) into Audio CD
format. Decoding takes place at the same time as the burn process.
Encoding
Encoding is the conversion of audio files that are located on an audio CD into an audio for-
mat that the computer can read.
GOP
GOP stands for Group of Pictures and describes a group of sequential single images in a
stream of images in a video file. Every movie or video stream consists of sequential GOPs. It
is from there that the visible images are generated.
I-Frame
Intra frames (also called key frames) are complete single frames. No information from other
images is needed to decode these single images. I-frames require the most storage space,
but they offer the highest quality picture.
Image file
An individual file on the hard drive that contains an image of a complete disc. An image can
be used if problems occur during the burn process or if there is no burner connected to the
PC. You will need free space on your hard drive to create an image.
Interlace
The interlacing process, which is used to display a TV picture in PAL standard, displays two
half frames in succession. As the frame is generated, only the odd lines from the output de-
vice are displayed for the first half frame. When this is complete, the second half frame is
generated from the even lines. The two frames are encoded separately. The relatively high
refresh frequency means that the eye picks this up as a single frame.
Interpolation
Interpolation is a calculation process in which intermediate values are calculated from two or
more known values. When the size of screened images is calculated anew, the number of