snapperocks asked the following by PM:
Hi Alex
You have kindly helped me with this before. I find now that I have MC 13 I no longer have my CD database. I still have MC 12 installed with the data base so is there a way to import/export this data base to MC 13? Would you explain how I can do this and add the MC 13 database.
I really appreciate your assistance.
Since my answer and the possible discusssion may be useful for others I'll post my reply here.
The only way to import the CD database is to import the complete MC12 library. Create a library backup file in MC12 and restore the file in MC13.
If you already have lots of new/newly tagged files in your MC13 library you can export the MC13 library as an MPL playlist and import that playlist after you have restored the MC12 library backup file. It will then update file data and import the new files. You must use the File > Import Playlist tool if you want to update existing files from an MPL playlist file. The auto-importer does not do that.
I thought that it would be possible to export/import an MPL playlist of the CD files, but apparently that does not work. An MPL playlist that consists of CD and DVD files doesn't import the filename values at all. (I'll report this as a bug.)