1. When searching for covers, is it possible to do a simultaneous search in all Amazon databases?

This is not, to my knowledge, possible and would require a sequential search. This may get a little problematic. Do you want it stop at the first one it finds (some times it finds several from one database) or search all of them all the time?

2. Trouble renaming artists. I got some artist names wrong from the automatic lookup when I do CD scanning. Tried to right click the artist name folder in the list on the left side of the program window, and choose Rename (F2) but nothing happens.

You have to change this on the General tab of the cd properties for the one you got wrong. OrangeCD makes a distinct Artist entry for every unique entry in the artist box in cd properties, with the exception noted next. You can have several spellings or different names for one artist by adding spellings or alternate names in the Other spellings or names box on the Display tab of the artist properties, but this probably isn't how you want to correct misspellings.

3. If I buy a registration key, can I install it on more than one computer at home? I got a desktop computer and a laptop. Would be nice to install it on both pc's, have the database stored on the desktop and share the folder on my LAN.

Andrei has warned me that while this is possible, you have to be careful not to have both the desktop and the laptop accessing the database at the same time or you may have the pleasure of starting all over from scratch. OrangeCD is not designed for a multiple user environment.

4. Adding 2 identical titles. I got double up of a couple of titles, and I'd like to enter both of them in the database.

You can enter the number of copies of a title on the Library tab of the cd properties. Currently, there is no direct way to have this information appear in the album display. Perhaps Andrei could make this an option under the