Data Compression/Executable Compression/ECM file on Linux

How to compress or decompress an ECM file on GNU/Linux? Description The ECM format allows you to reduce the size of a typical CD image file (ISO, BIN, CDI, NRG, CCD, or any other format that uses raw sectors). It works by eliminating the Error Correction/Detection Codes (ECC/EDC) from each sector whenever possible. The encoder automatically adjusts to different sector types and automatically skips any headers it encounters. Since the data skipped is nearly impossible to compress with traditional tools, the resulting ECM file will compress far better than the raw CD image. ECM on Linux Install the "ecm" package, it is available in Debian repositories: https://packages.debian.org/stretch/ecm apt install "ecm" Compress use "ecm-compress" command EXAMPLES ecm-compress foo.bin strips the ECC/EDC data from the foo.bin CD image and save the resulting file as foo.bin.ecm ecm-compress foo.img foobar strips the ECC/EDC data from the foo.img CD image and save the resulting file as foobar run "man ecm-compress" for more information De-compress use "ecm-uncompress" command EXAMPLES ecm-uncompress foo.bin.ecm regenerate the ECC/EDC data from foo.bin.ecm and save the resulting CD image as foo.bin ecm-uncompress foo.img.ecm foobar regenerate the ECC/EDC data from foo.img.ecm and save the resulting CD image as foobar run "man ecm-uncompress" for more information Sources https://packages.debian.org/stretch/ecm https://www.unix.com/man-page/all/1/ecm-uncompress/ Category:Book:Data_Compression Category:Subject:Open source software