This is the main window of DART CDRecorder whwre you can see a folder tree view of your hard drive content from where you can select audio files and add them to the list of files that you want to write on the CD 

Here you can see the Recording window that allows you to record a wav file. You can select the Sampling Rate, the Channels and Number of bits. You are also displayed the free disk space, the recorded zise on disk and the duration of your recording 

In the CD - Recorder Options window you can set general options as well as options about producer, Soundcard and Devices 

And here you can see the progress bar that shows you how a *.wav file is being encoded to a better quality format