Best DVD Copy Software Review

 

 

B Frame
One of three picture types used in MPEG video. B pictures are bidirectionally predicted, based on both previous and following pictures. B pictures usually use the least number of bits. B pictures do not propagate coding errors since they are not used as a reference by other pictures.

 

Baldrick
Belt worn over the right shoulder to support a sword or bugle by the left hip.

 

Bidirectional prediction
A form of compression in which the codec uses information not only from frames that have already been decompressed, but also from frames yet to come. The codec looks in two directions: ahead as well as back. This helps avoid large spikes in data rate caused by scene changes or fast movement, improving image quality.

 

BIN,CUE
The .BIN / .CUE CD image format was made popular by the CDRWin software. Afterwards many programs have started supporting or partially supporting it, including: Nero, BlindWrite, CloneCD, FireBurner, vcdimager and cdrdao. The .CUE file contains VCD or SVCD or other data track layout information, while the .BIN file holds the actual data. VCDhelp.com bin/cue pages - afterdawn.com

 

Bitrate
Bitrate or Bit Rate is the average number of bits that one second of video or audio data will consume. Higher bitrate means bigger file size and generally better video or audio quality while lower bitrate means lower file size but worse video or audio quality. Some bitrate examples in common video and audio files:
MP3 about 128 kbps (kilobits per second)
VCD about 1374 kbps
DVD about 4500 kbps
DV about 25 Mbps (megabits per second).

 

BitSetting/BookType
The BookType is a field of four bits at the start of every DVD (in the physical format information section of the control data block) that indicates what the physical format of the disc is. Many devices will use this "Book Type Field" to determine how the disc should be treated. One common cause of compatibility problems is when a device does not recognize the Book Type of the disc that has been loaded, most likely as a result of the device being manufactured before that particular Book Type has been defined (e.g., most DVD playback devices made before mid-2004 will not recognize the relatively new DVD+R DL Book Type). For DVD+R, DVD+RW, and DVD+R DL discs, it is possible to change the Book Type field value to the value for DVD-ROM (or in some rare and unorthodox cases, even the value for DVD-R) in order to fool older devices that do not recognize newer Book Type Field values (this process is known as bitsetting).

 

Block
The block is a matrix of 8x8 elements. They can be 8x8 adjacent luminance or chrominance samples, or the corresponding DCT coefficients. At the block layer is performed the Discrete Cosine Transform. Video decoding process at the block layer Variable length decoding. The bitstream codewords of the block are decoded to form a vector of quantised DCT coefficient. Inverse scan. The vector elements are put into a two-dimensional array, which is the block, following one of two possible patterns. The pattern is defined by the flag alternate_scan which is set at the picture layer. The scanning purpose is to optimize the entropy coding. Inverse quantisation. DCT coefficients are converted to their original range of values. See also dct quantisation. Inverse DCT. Eventually the IDCT is performed. Now the block elements represent either the image sample (Intra block) or the prediction-error (Non-Intra block).

 

BluRay, Blu-Ray, BD
A Blu-ray Disc (BD) is a next-generation optical disc format designed for high-density storage of high-definition video and data.

 

Bootleg
Produce, distribute, or sell without permission or illegally.

 

Bps
Bits per second. A unit of data rate