bzip2 is a freely available, patent free, high-quality data compressor. It typically compresses files to within 10% to 15% of the best available techniques (the PPM family of statistical compressors), whilst being around twice as fast at compression and six times faster at decompression.
The code is organised as a library with a programming interface. The bzip2 program itself is a client of the library. You can use the library in your own programs, to directly read and write .bz2 files, or even just to compress data in memory using the bzip2 algorithms.
Excellent tool for managing ZIP archives. It is easy to use, and provides a wide range of features for creating, extracting, and managing ZIP archives
Excellent tool for editing and creating custom ringtones. It is easy to use, with a simple interface and intuitive controls
Changes the ID3v1, ID3v2.2, ID3v2.3 and ID3v2.4 tags of your songs
It's a free yet very powerful video conversion and DVD ripping tool
Versatile video editor and converter with support for all known formats
Xvid is an open-source research project focusing on video compression
Total Video Converter is a powerful video and audio conversion tool
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