Do you consume a lot of hi-quality scans from museums/archives/libraries? This is the common standard. The LoC distributes all of the high quality scans in tif

Do you consume a lot of hi-quality scans from museums/archives/libraries? This is the common standard. The LoC distributes all of the high quality scans in tiff format: http://lcweb2.loc.gov/service/pnp/cph/3b40000/3b48000/3b48800/3b48839r.jpg http://lcweb2.loc.gov/service/pnp/cph/3b40000/3b48000/3b4880... http://lcweb2.loc.gov/service/pnp/cph/3b40000/3b48000/3b48800/3b48839u.tif http://lcweb2.loc.gov/service/pnp/cph/3b40000/3b48000/3b4880... Why do so many projects still distribute gz or bz tarballs when xz is the best?