Quote:
Originally Posted by theducks
Moving a 7.x library to 3.x , 4.x and even 5.x
runs risks. You might have gotten away with it for now, but do NOT try to move back. Not only has the code (and features) evolved, but those in 7.x allow things the earlier versions did not. Some required database changes to store additional info.
Is the W7 machine 32 Bit  ? That limits options.
64bit: Consider booting Linux on a USB drive or fast stick (no mods to the host if it allows a USB boot) |
Thank you, theducks!
I didn't move a Calibre library. What I was trying to do is learn in which file Calibre keeps its device data (let's say it's called "devices.something"). Then copy said file from the 7.6 at home (that includes my new Kindle) and replace the old (3.4) devices.somthing in the same folder.
I know it would probably not work... but all I'd have to do is to previously backup the whole Calibre folder, and restore it if things didn't work. It doesn't matter that much, anyway, because I won't be using Calibre at work since I can't organize my Kindle from there anymore.