BCM is a relatively new file compression program by Ilia Muraviev. It is important to note that the 64-bit version of BCM is not simply a different compilation of the 32-bit code; rather they are two programs with different code, and Ilia has given the 64-bit version the majority of his development attention.
NanoZip 0.07 alpha/Win64 - (C) 2008-2009 Sami Runsas - www.nanozip.net *** THIS IS AN EARLY ALPHA VERSION OF NANOZIP *** USE ONLY FOR TESTING *** usage: nz.exe <command> -<switch 1> -<switch N> <archive_file> <files...> e.g. nz.exe a -cO -m1.2g backup document1.txt document2.txt commands: a add files to archive l list contents of archive q quick check archive for damage t test archive (full decompression) x extract files from archive w32c create self-extracting archive (windows 32-bit console) info information about host system help show advanced help unix show unix specific options switches: - stop scanning switches r recurse subdirectories c<n,f,F,d, compressor: none, nz_lzpf, nz_lzpf_large, nz_lzhd, D,o,O,c> nz_lzhds, nz_optimum1 (default), nz_optimum2, nz_cm s<n,e,a,s> sort files before compression: no sorting, by extension (default), by name, by size h<n,c,C,f> checksum: none, crc16, crc32, fletcher16 (default) m<0...n>[k,m,g] memory usage (approximate) nt do not store timestamps np do not store permissions nm do not store metadata or redundancy (equals -nt -np -hn) sp strip paths from files o<path> output path y yes to all queries v verbose x<file> exclude file(s)
BCM saw marginal improvements in the 64-bit version.
-b384 was the highest setting I could test, because the 32-bit version was unable to use a blocksize of 512MB