The “Copying music files” dialog appears every time when starting rekordbox. Is there any way to prevent this dialog from appearing?

If there are 50 or more missing files, the "Copying music files" dialog will appear when starting rekordbox.

You can prevent this with the following method.

• If the location of the music file has been changed, relocate the music file.

Select [Display All Missing Files] from the [File] menu.

In the [Missing File Manager] window, click the [Auto Relocate] or [Relocate] button.

For details, refer to this FAQ.

• If a music file has already been deleted, the missing file will be removed from the collection.

Select [Display All Missing Files] from the [File] menu.

In the [Missing File Manager] window, click the [Delete] button.