The issue of filenaming and directory structure is very important, and worth being discussed in the context of a coordination between PG-like projects. I include in this definition not only projects that use the Project Gutenberg trademark, but also projects that share the goal of PG, and might be partners in a world-wide "Gutenberg Federation". I would like to see the directory structure of several projects to be compatible; this means two important features: - there are no name incompatibilities: a file from one project will not overwrite a file from another. This requires coordination, but a numerical scheme like PG-main or PG-AU forces incompatibilities - the directory structures put together related books of different origin. I would like to see togeter the different volumes of the same work even if they are released in different times; different books of the same author, and originals and translations of the same book, independently of the project that prepared it. A big virtual library might be obtained copying the directory structure of all the projects under the same root; this might be utopian, but an approximation might already be significant. I think that the structure used by Progetto Manuzio is a good one, but should be improved to be adopted. They have a subdivision per letter of the author name, then author name, then a directory per work, and inside a directory per file type. So for example they have a/alighieri/ with index.htm giving informations on the author and a list of available works; inside, a/alighieri/convivio_edizione_busnelli_vandelli/ and a/alighieri/convivio_edizione_vasoli_de_robertis/ and moreover a/alighieri/convivio_edizione_vasoli_de_robertis/rtf/ a/alighieri/convivio_edizione_vasoli_de_robertis/txt/ What I like less, is that both directories contain convivio.zip, hence there is an overwriting possibility when uploading the files. Of course, with 8.3 naming conventions this is unavoidable, but I believe that this now can be overcome. I would like better something like a/alighieri/convivio/edizione_vasoli_de_robertis/txt/convivio_vasoli-txt.zip and a/alighieri/convivio/en/translator_name/txt/convivio_en_tn.zip Of course, such a structure requires a coordination between projects; to avoid having a centralized authority, i would suggest that a default competence be identified, that can be decided by origin (dutch authors of competence of PG-NL) or by first inclusion. The centralized catalogue is however needed: before including a book, an authorization (issued by automatic criteria, possibly by a robot on the basis of the metadata) should be obtained. Of course, such an approach requires advances in the constitution of a "Gutenberg Federation" to handle at least the format of the metadata and the unified catalogue; compliance to the recommendation should be voluntary, but I believe that if the recommendations are useful they will be followed. Carlo