The PDF edition of the historic electronics magazin Elrad
comes on two DVDs and occupies roughly 10 GB on the hard
drive. The magazin appeared between 1977 and 1997. For
each monthly issue there is one PDF file. The files
are stored in a "year/month" folder structure ...

../Pdf/92/01/Elrad.9201.pdf
../Pdf/92/02/Elrad.9202.pdf
../Pdf/92/03/Elrad.9203.pdf

The individual PDF files consist of a page by page scan of
the original magazin plus an additional layer containing
the page text. This makes it possible to search the file
for keywords while only the scanned page is visible. A
large index file contains the links between keywords
and their positions in the scanned images.

At the root of this folder structure there is one small PDF
file "Start.pdf" which displays the years and the months
in its side pane ...

1992
   ELRAD 01/92
   ELRAD 02/92
   ELRAD 03/92

With Acrobat Reader and with FoxIt under Windows it is no
problem to open the individual monthly issues from within
"Start.pdf". Unfortunately this doesn't work in Evince.
Clicking on these links has no effect whatsoever. The
same problem exists in Kpdf.

Let me know if you need sample files. Although Elrad is
copyrighted I think it's ok for testing purposes if I
supply you with the folder structure, Start.pdf, the
index file and two or three sample issues ... it'll
still be at least 150 MB or more ... :-)