This problem remains.
It is even more frustrating (?) given the advice in the latest Calibre update which explains the preferred method of sending books to the iPhone - but it carries no explanation of how Stanza is to access the iPhone's main memory.
See Calibre 'What's New' notes release 7.53
http://calibre-ebook.com/whats-new
See forum post for the method I mentioned - it goes into quite some detail.
https://www.mobileread.com/forums/sho...d.php?t=127883
and
https://www.mobileread.com/forums/sho...d.php?t=118559
Any suggestions gratefully received - I'm sure there must be olthers out there who need a solution to this problem.
NOTE: As this partic;ar thread is quite old, I will also post a new question with this same content.