I created a two-level navigation set of scriptures (OT, NT, PGP, BM, DC) for my Sony PRS 300. It does not have screen navigation. I have already converted the files from html to epub format and run all on my reader. There are five separate books as described above. The two-level navigation is as follows: Level 1: Genesis, 1 Nephi or D&C Sections 1-10 Level 2: Genesis Chap 1, 1 Nephi Chap 3, D&C Section 89 (just examples) This navigational formatting was pursued after buying my reader to read the OT on my daily commute int he Wash DC area. I created HTML files first, applied necessary tags throughout, and then converted them using Calibre (a free software utility). You can access them on my website at:
http://www.icentricity.net (follow the link to My eBooks)
There are free for anyone to use. My contact info is on the eBook page so you can report any challenges should you encounter any.
I have loaded them onto a Ward member's Sony (next model up with touch screen and 7" screen) and they work very well on that reader.
Greg