DRC to M4B
Convert DRC to M4B Audiobook, DRC to M4B Converter
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DRC to M4B Converter converts DRC files to M4B audiobook. The software is an ALL-IN-ONE audio converter that supports more than 110 audio and video files.
DRC to M4B Converter supports batch conversion and is full compatible with Windows 10/8/7/Vista/XP/2000.
Click on "Add Files" button to choose DRC files and add them to conversion list.
Choose one or more DRC files you want to convert and then click Open.
Click on button "Convert" to convert DRC files to M4B audiobook.
Alternatively, you could click "Convert to One" to convert and combine/join/merge multiple DRC files to one M4B audiobook.
The software is converting DRC files to M4B audiobook.
Right-click converted M4B audiobook and choose "Play Destination" to play the outputted M4B audiobook, choose "Browse Destination Folder" to open Windows Explorer to browse the M4B audiobook.
What is DRC?
The specification was finalised on 21 January 2008, and further developments will only be bug fixes and constraints. In September of that year version 1.0.0 of the reference implementation was released which corresponds to an intra-frame only subset known as Dirac Pro, which has been proposed to the SMPTE for standardisation as VC-2. Version 2.2.3 of the full Dirac specification, including motion compensation and inter-frame coding, was issued a few days later. Dirac Pro was used internally by the BBC to transmit HDTV pictures at the Beijing Olympics in 2008.
The format implementations are named in honour of the theoretical physicists Paul Dirac and Erwin Schrodinger, who shared the 1933 Nobel Prize in physics.
Dirac supports resolutions up to HDTV (1920x1080) and greater and is claimed to provide significant savings in data rate and improvements in quality over video compression formats such as MPEG-2 Part 2, MPEG-4 Part 2 and its competitors, e.g. Theora, and WMV. Dirac's implementers make the preliminary claim of "a two-fold reduction in bit rate over MPEG-2 for high definition video", which makes it comparable to the latest generation standards such as H.264/MPEG-4 AVC and VC-1.
Dirac supports both constant bit rate and variable bit rate operation. When the low delay syntax is used, the bit rate will be constant for each area (Dirac slice) in a picture to ensure constant latency. Dirac supports lossy and lossless compression modes.
Dirac employs wavelet compression, instead of the discrete cosine transforms used in most older compression formats. Dirac is one of several projects attempting to apply wavelets to video compression. Others include Rududu, Snow, RedCode and Tarkin. Wavelet compression is also used in the JPEG 2000 and PGF compression standards for photographic images.
Dirac can be used in various container formats (e.g., AVI, Ogg, MKV). It was registered for the use in container formats based on the ISO base media file format (MPEG-4 Part 12; e.g., MP4). It was also registered for use in MPEG-2 transport stream.
What is M4B?
The M4B extension is used by audiobooks downloaded from the Apple iTunes store; these audiobooks may be copy-protected using Apple's FairPlay DRM, which means they can only be played on authorized computers or iPods.
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