I think only information about ripped CDs is in the CD database
The CD/DVD database actually holds the details of every disc MC sees... I think this might be causing issues that are currently being discussed in another thread, but don't know enough about it.
I regularly go through mine removing driver installation discs, game installation discs and so on.
Other than that, I agree that Harroun4 must have these cda files imported to the main database.
I may be missing something here, but in my experience, if you copy a cda file from an audio disc to your HDD, you get a useless 44 byte file on your hard drive that nothing can play. You must either play, or rip the audio.
You can have them imported into MC though, referencing their location on original optical media.
The easiest way (I think) to check the main database for references that should really only be in the CD/DVD database, is to perform a search for:
-[volume name]=:
Any results returned from that are not on a local hard drive, and are virtually guaranteed to already exist in the CD/DVD database.
If you don't want them there, select all, press delete, and remove from media library.
By default, MC does not come with a view set up for showing the CD database, but it is quite simple to craft one.
The attached zip file contains an uncomplicated example that will work for everyone. You can place it anywhere as it doesn't honour parent searches, but makes most sense on the root of the tree.
InstructionsDownload the attached zip file.
On Windows, extract the contents to: "C:\Users\[user name]\AppData\Roaming\J River\Media Center 21\Library\Saved Views"
If the saved views folder is not there, create it.
On a MAC, copy the string below:
~/Library/Application Support/J River/Media Center 21/Library/Saved Views
and paste the string directly into
Finder > Go > Go to FolderExtract the jvi file to this folder.
Once the jvi file is saved, go to MC, and from the top menu choose "View > Add View > Add Library View" and use the view picker to add the view.