I’ve been trying out the Personal version for the past week or so, and would like to try out the Pro version as well before deciding. However, the first time I opened the Pro version, I pointed it at some of the sample databases - how can I take the Personal database and switch it to the Pro? Thanks.
 Locate your DT Personal database at ~/Library/Application Support/. Your database is the folder named “DEVONthink”.
 Select (don’t open) that folder and copy (Option-drag) it to your Documents folder.
 In your Documents directory, select (don’t open) the “DEVONthink” folder and press Command-I to open the Info panel.
 In the Info panel change the name, e.g. to “DT Pro Database.dtBase” (without quotes) and press Return. Close the Info panel. Notice that you now see a package file with the DT Pro logo.
Double-click on the new database file to open it under DT Pro.
Make this your default database. Select File > Database Properties. Near the top of the Database Properties panel check the option to make this the default database.
You are now good to go.
Thanks a lot. I’m playing with some databases, including one that will index all the mp3s I have sprawled over 120 GB of external hard disk and about 20 DVDs. This looks great!