Creates a new project. You have to choose the project type (Audio CD, Data DVD, ...).

Opens an existing project which can be selected with KDE's Open File dialog.

This is a shortcut to re-open recently opened projects. The sub-menu belonging to this item contains a list of these projects, clicking on a specific file will open it again.

Saves the current project. If there has already been a save of the document then this will overwrite the previously saved file without asking for the user's consent. If it is the first save of a new document the Save As dialog will be invoked.

Saves the current project with a new file name. KDE's Save As dialog appears to specify name and directory of the new project file.

Saves all open projects. This is the same as selecting File->Save for each of them.

Closes the current project. If a project has been modified but not yet saved then K3b will ask what to do. You can choose to save or discard the changes, and you also have the opportunity to cancel closing and keep the project open.

Closes all open projects. For each unsaved project K3b will ask what to do, just like it does when File->Close is selected.

Quits K3b after closing all of its open projects. For every unsaved project K3b will ask what to do, just like it does when File->Close is selected.