I don't have anything this moment, but this weekend I did start writing an LRS/LRF round tripping tool in Scala which compiles to JVM byte code and works seamlessly with Java.
i.e., All you'll see is a jar file with an API.
(BTW if you currently code in Java. Stop, start coding in Scala.

)
Right now its not much more then the first "throw away" so I can get a feel for the LRF format. I think I got a handle on it, including the rather silly implementation of BlockSpace.
Attached is a zip which contains the Wizard of Oz original LRS from PRSLabs.com, and one I generated a couple of hours ago by decompiling Sony's LRF file . (When the code compiled, its all over the place now.) I attached my decompile log file.
I'm making steady progress thanks to the pre-work many have done in figuring out the LRF format. Thank you guys.
I also included a couple of key Scala source files for the interested.
OK, now for the real reason I'm posting. I'm loath to create yet another Source Forge project, yet, now that I'm going from POC to real stuff I'd like to get everything under source control. Does anyone who has a current Sony Reader software project in SF or Google code, etc... willing to share their SVN repository? I would not be checking in anything unrelated to my Sony Reader software and its GPL3.
I'm not writing yet a another format converter, but instead its a BBeB object model with LRF and LRS writers, and LRF, LRS readers with more reader / writers coming. The target is something more like BD.
[Note I removed attachement. Now need to waste space on pre-alpha code. First release in a month.]
Thanks,
Ray