I tried loading Hebrew files on Readium.
I could see the first page of each chapter. It showed empty page for each next page.
It seems as if the number of empty pages is the same as the number of pages that should have been in the chapter.
I used readium 0.4.2 on Chromium version 18.0.1025.168
Curious, because arabic and japanese files work well. (some samples available here: http://code.google.com/p/epub-samples/wiki/FeatureMatrix#Languages/Scrip...)
Have you tried with Readium 0.5.0 ?
Yes, I tried it with Readium 0.5.0
I can send you a sample file that you can see the problem.