http://bugs.openzim.org/show_bug.cgi?id=21
--- Comment #2 from Emmanuel Engelhart emmanuel@engelhart.org 2010-09-27 08:38:45 CET --- If we don't implement that feature, how do we want to display quickly, allow seeking in a 10MB video or audio file? How do we allow a download window to appear immediately? This is concrete problems I have, as a user, with my ZIM files.
The good news is that not all the articles are compressed... In fact the articles which need this quick random access are mainly not compressed (audio/video/...) in the ZIM itself. So at least, 90% of what I think user need would be reach with such a feature for non compressed content.
For the compressed articles, the problem occurs only with big articles which need a big uncompress time and a big download time... and you already have written about the solution in such cases.