[chameleon]

thanks for your replies.

However I already realise I can drag and drop onto the Sony 600, that was the first thing I tried, but it doesn't retain the folder structure: ie it just compiles all the books in one LONG list, which I then have to endlessly go through in order to re-categorize as 'Collections', you cannot drag across folders with folders inside them eg a cookery section folder with authors folders inside it...it doesn't recognize folders at all!...that was my problem.

Also the fact that it randomly renames files which makes it very hard to find them amongst hundreds listed?

I have d'loaded Calibre but am not sure if it will solve the problem as it seems to be the way Sony have structured the reader itself...Collections should allow you to reorganize the files themselves into respective folders, not just point shortcuts at the original files... that would allow for folders to be dragged.

Has anyone else had a problem with arbitrary renaming of files, especially pdfs?

thanks