Well. It seems that backup and maintenance are not fashionable. The PRS is not a computer ?
Anyway, for the information of the few that could be interested, I use now very satisfactorily a tool called grsync on Ubuntu. It's a very convenient graphical synchronisation tool. So, once the files have been sent with the right format to the PRS using calibre, I delete them and only rely on my synchro (with checksum included).
Every minor modification is now kept. Including bookmarks, collections, tags, whatever...Synchro lasts some seconds. So it's just a reflex to acquire, you add some new books, you make a synchro. Peace of mind.
As far as the idea of fsck, since the PRS-505 uses a Linux kernel, it should be possible, using a live-cd like rescuecd, to fsck the files. Still mulling about it though.
Last edited by roger64; 01-21-2009 at 12:21 AM.