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BZIP2 for VMS - A File Compression/Expansion Utility


Excerpt from the BZIP2 Web Page

bzip2 is a freely available, patent free [(see README in the distribution kit)], high-quality data compressor. It typically compresses files to within 10% to 165% 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.

BZIP2 Web Site


Caution for VMS Users

BZIP2 is a UNIX-oriented utility, and as such, it has little hope of dealing well with RMS files whose record format is anything other than Stream_LF.

For more versatile compressor-archiver programs with greater RMS capability, consider the Info-ZIP programs, Zip and UnZip.

Note that this bzip2 kit includes an object library which can be used to provide bzip2 compression in the Info-ZIP Zip and UnZip programs, and these programs can deal well with VMS/RMS file attributes. The Info-ZIP installation instructions explain how to build these programs with bzip2 compression support.

For another UNIX-oriented compression utility, see gzip.


BZIP2 1.0.6 for VMS


BZIP2 1.0.6 VMS-Ready Kit


BZIP2 for VMS Archive

All versions of BZIP2 for VMS, including older and experimental ones, may be found at the archive: /ftp/bzip2/

FTP access is also available at: ftp://ftp.antinode.info/bzip2/


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© 2016 Steven M. Schweda.