library.zip and 7zip

[Peter Hansen]

Delaney, Timothy C (Timothy) wrote:

> Jaco Smuts wrote:
> 
>>which works fine when I skip the 7z bit, but that breaks it?
> 
> 7z uses LZMA, which is a different compression method.

I was going to say the same thing, until I checked the
7zip web page and found that the -tzip option specifies
a standard zip file, not the 7z format.  Interestingly,
7zip claims to improve on the compression ratio even
for the standard format (e.g. about 7% better on the
Canterbury Corpus file set).

-Peter