Originally Posted by RWood
For that task your best bet would be html2lrf in free package libprs500. Click on the libprs500 link on the Conversion page in the MobileRead Wiki.
Now I have some other questions. How do you convert in batch? I can edit meta information in batch, but can't convert in batch.
Also, can I use this program for the PRS-505 too? I'm thinking of getting one.