aphy.html#deutsch3">[Deutsch3]</A>) using Jean-loup Gailly's and Mark Adler's zlib compression library (<A CLASS="bib_ref" HREF="../bibliography.html#gailly">[Gailly]</A>). They are implementation as derived classes of the <A HREF="zlib.html">Zlib Filters</A>. The difference between the G<SPAN STYLE="font-size:80%">ZIP</SPAN> and Z<SPAN STYLE="font-size:80%">LIB</SPAN> formats is that data in the G<SPAN STYLE="font-size:80%">ZIP</SPAN> contains more header information and a different checksum (<A CLASS="bib