If you have problems with the lrf format for your Sony Reader using Calibre, the message seems to be: tough noogies. I just encountered a bug when converting a .lit file, where extra spacing was added before the last line of each paragraph (and between paragraphs, it seems). Got a quick reply to my ticket, with a "wontfix" status, saying that lrf output is "deprecated." (?) Which I take to mean no longer supported with respect to bugs.
Saw another recent lrf problem reported here, with the suggestion to use ePub output instead.
Sorry, but I sometimes prefer the lrf format, because it actually provides full justification on the Readers--which ePub does not. And because I can use lrf files on my 500 Reader (which I choose not to have upgraded to avoid killing battery life).
Just thought I'd give a heads-up to save anyone else the trouble of reporting lrf problems. Thanks, Calibre.
Anyone know of another utility for converting to lrf?