Primarily, it makes editing more versatile. You can now:

* Split a single track into several tracks, or join multiple tracks into one
* Make a copy of an audio file (so you can "chop up" the copy without affecting the original file)
* Quickly import an entire CD to the hard drive, in one operation
* Copy and paste DSP settings from track to track
* Copy playlist information and DSP information to a CD24
* Set start and end points more easily
* Render the DSP to the audio file, making it permanent if desired
* Add a start and end offset time, to keep sections of a track from being "cut off" when played in slow-access CD players
* Loop a song, CD, or playlist for continuous playback.