YBS, version 0.03f (Sep 2000)
Copyright (c) 2000 Vadim Yoockin, all rights reserved.

YBS is a freeware high-performance arhiver based on BWT and distance coding.
It is still under development, so you use this program at your own risk.

Usage:

  ybs [-<switches>] <archive> file1 file2...

Switces:

  -d:  decompress (it isn't necessary to use this
       switch if you rename the program to "unybs")
  -y:  overwrite existing file
  -r:  reverse sorting order (it may increase speed or
       compression ration for some files)
  -v:  verbose (not too much informative :)
  -mu: automatically reduce block size on unsufficient memory
  -mN: set block size to N
       maximum - 16Mb
       default -  2Mb
       for example, -m2m or m2048k - set block size to 2Mb.

Compression   uses 8 * block_size + 256kb,
Decompression uses 5 * block_size.
It's possible to considerably reduce memory requirements
almost without slow down. Probably I'll do it if I have
more time.

Thanks to

Edgar Binder - for describing me distance coding algorithm,
Szymon Grabowski - for text tricks (I don't implemented yet :),
Aleksandr Ratushnyak, Dmitry Shkarin, Eugene Shelwien,
  Sebastian Deorowicz, Vladimir Trutnev - for testing.

Latest version is available at http://compression.graphicon.ru/ybs
I'll be appreciative for suggestions and bug reports.

E-mail: yoockinv@mtu-net.ru