I can't speak to the first paragraph below, but can to the second. -0.zip - contains the zipped UTF8 text file for a given etext number, e.g. 56843-0.txt. "-8" is used for ISO-8859/Latin1 text files, while no designator is used for ASCII text files, e.g. 12345.txt -h.zip - contains the zipped HTML file and its accompanying /images folder, if there is one. To use 56843 as an example, it contains the entire contents of the folder 56843-h. The epub and kindle files are auto-created from the underlying posted files (in http://www.gutenberg.org/files/56843/) at the time of posting. They're stored elsewhere and are auto-regenerated should the posted files be corrected. The posted HTML file is used as the source; if there's no HTML file, the text file is used. Sometimes only a text file is submitted to PG--in such cases, an HTML file is auto-generated. Al Haines Project Gutenberg -----Original Message----- From: gutvol-d [mailto:gutvol-d-bounces@lists.pglaf.org] On Behalf Of Tim Hare Sent: Sunday, April 29, 2018 8:56 PM To: gutvol-d@lists.pglaf.org Subject: [gutvol-d] Ideas about book landing page & metadata presentation Hello, I just joined this list but I'm interested in this current thread. What is the goal of moving to these static HTML pages / directories? Is it to eliminate the processing time necessary to generate these files with the current back-end processing? Seems you will be (possibly) using more disk space - a trade-off which may be worth it, I'm not arguing against it - to save CPU time? I need to understand more - What is currently stored for each book? Is it stored in all of the formats at http://aleph.gutenberg.org/cache/epub/56843/ or are those created at the time someone requests them? In https://www.gutenberg.org/files/56843/ what's the difference between the -0 zip and the -h zip? Tim Hare Tallahassee, FL Interested Bystander, Non-Inc.