qpress is a portable file archiver using QuickLZ and
designed to utilize fast storage systems to their max.
It's often faster than file copy because the
destination is smaller than the source. It supports:

multiple cores, reaching upto 1.1 Gbyte/s in-memory
compression on a quad core Xeon

64-bit file sizes and tested with terabyte sized
archives containing millions of files and directories

pipes and redirection and *nix-like behaviour for
scripting and flexibility

Adler32 checksums to ensure that decompressed data has
not been corrupted

data recovery of damaged archives with 64 Kbyte
grannularity

unbuffered disk I/O (Windows only) to prevent disk

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