Hope this helps with the LRF Format
LRS is the source format for Sony eBooks which are also known as BBeB (BroadBand eBook). The LRS format follows the Xylog XML format. The Xylog link provide the particulars for this format.
[edit] LRF
LRS is compiled into LRF files in a proprietary way to produce the files used on the Sony Portable Reader. These files are compressed and may also contain the pagination data for the various font sizes used on the device. For more on this format see:
http://www.sven.de/librie/Librie/BBeB[edit] Devices and Software
The following Devices and Software can read eBooks in the LRF format:
* Sony PRS-300 - 5" Screen Device
* Sony PRS-500 - 6" Screen Device
* Sony PRS-505 - 6" Screen Device
* Sony PRS-600 - 6" Screen Device
* Sony PRS-700 - 6" Screen Device
* Sony Librie - Device
* eBook Library - software, free, Windows only.
http://ebooks.connect.com/downloadclient.html * Calibre - software, free, Windows, Linux, MacOS X
There are also utilities to convert data to this format:
* Book Designer - Create content or convert content.
* Calibre - Convert and read LRF files Converts: HTML, LIT, RTF, TXT, PDF (simple text+few images)
*
http://www.msh-tools.com/ebook/lrs2lrf.html converts Source files.
* See the E-book conversion page for more converters
[edit] LRX
If the files are protected by DRM the extension is changed to LRX. Note that the LRX file for the Sony Librie is not compatible with the DRM file used on the Sony Portable Reader Devices. Products purchased on the Sony Connect store will typically have this extension. The Sony DRM method provides for up to 6 devices that can work off the same owner code. One of those codes is used by the PC Desktop Reader called the "eBook Library."