Calibre.
1. - I give him five stars for:
- the "recipes" allowing to download magazines are truly wonderful and work extremely well (at least for the ones I tried)
- it converts odt, doc, txt to epub files simply and most of the time well
2. - I do not use it systematically though.
- I do not keep any calibre library file. As soon as I upload a file to my Reader, I suppress the calibre entry on my computer.
- When I know that the file to be uploaded is OK (coming from Feedbooks for example
), I just place it directly in the Reader without using calibre and let the Reader update itself the cache.xml file.
3. - I use other utilities as a complement to calibre.
- I use a syncing utility called
grsync to backup my Reader files (this is Linux).
- Calibre is useful for editing meta-files for epub, lrf and others, though I found that I had better edit PDF meta-files with third party software. Maybe this will soon be fixed in calibre.
I never used the Sony library software.