Originally Posted by Waba
This is a known bug. calibre doesn't support setting metadata in PDF files and some models/firmwre versions of the Sony reader always overwrite the calibre specified metadata in the database with the original PDF metadata. This wont be fixed until calibre gets the ability to write pdf metadata or SNY fixes their buggy firmware.
Thanks for the info. Inability to write PDF embedded Title/Author metadata on the first pass has been driving me crazy. Only solution I have found was to allow corrupted data to be written to the Sony eReader (PRS-300 and/or PRS-600) and then manually post an updated change to the eReader on a second pass with Calibre. Had assumed there was a better way and that I must be doing something wrong in my use of the application.