ftp://ftp.eenet.ee/pub/cpan/modules/by-category/17_Archiving_and_Compression/  direct

[DIR]RPM/  direct  1459+ twin directories
[DIR]PPM/  direct  402+ twin directories
[DIR]Convert/  direct  1201+ twin directories
[DIR]Compress/  direct  1365+ twin directories
[DIR]Cache/  direct  2447+ twin directories
[DIR]BBDB/  direct  580+ twin directories
[DIR]Archive/  direct  2381+ twin directories
[DIR]AppleII/  direct  391+ twin directories