On Wed, Oct 02, 2013 at 01:03:27PM -0400, Hugo Alejandro wrote:
> A few days ago I was recruited to work in the analysis of large surveys,
> what caught my attention is the use of the format *. zsav above *.sav.
> Apparently this file format supports higher compression ratio and is more
> efficient with large databases to reduce their size on disk and be faster to
> compress-decompress to create a ZIP file (or other format) with a *.sav file
From here, I think that the next step would have to be to look at both
the .sav and .zsav versions of files. I would be most interested in
larger files (say, 1 MB in size), because I
think that it is likely that
some of the mysteries above would be cleared up if there were more
compressed blocks in the file (or perhaps we would find out that there
is only ever a single compressed block).