I have hundreds of books... maybe closer to a thousand.
I don't mind having a Kindle for PC for my Kindle format, and Calibre for all the rest.
I'm just not sure why having multiple formats is desirable for a personal collection, and I'm not really wanting to convert books I've downloaded in the Kindle format into a format for my Calibre.
By organizing, I'm hoping to not only save hd space but making things a bit simpler.
Thanks again for all the responses!!
And, if the device is stolen, or damaged or... loose your content? I think you should see Calibre as a central database. From there you fill your devices with whatever content you like. Yes, you do have at least double copies, but you also have a more redundant storage system.[/QUOTE]