On Wed, 2012-08-22 at 16:15 +0200, Jerome BENOIT wrote: > xz: tar Jcf I'm using a distro that packages with xz. I'm sure that there never was a big difference between "gz: tar zcf" and "bzip2: tar jcf" for the length of the files, but the time for packing and unpacking does differ very much. Speaking for Linux backups and audio data backups.