DP02 when mastering it says trk too short???????

CDs are formatted like any other format of digital audio.  One of the restrictions of a CD's formatting is a track can be no shorter than 4 seconds.  Usually this happens when there are tracks that were created as part of your project and were not recorded on.  When you try to burn a CD, if one track is shorter than four seconds it will give you that message every time. This is because the standard gap between songs is usually three seconds.  The CD burner's format requires it to check how many tracks there are (another limitation of the CD format is you can only put 99 tracks on a CD) so the burner reads every bit (literally bit) of audio for the gap between tracks.  You must determine the length of every bit of audio on your program and make sure each track is longer than three seconds.    I have been mixing and mastering records on CD for ten years and I still get this problem.  It happens to the best of us.  Don't be frustrated.  Remember a machine will only try to do what you tell it to do.  It wont always tell you what you are doing wrong. It will only do what you tell it to do, or not, if it is impossible.   Go through every track in your project and examine how long each track is.  Read your error message carefully. My burner will say "track 5 is too short". Check and double check. Make sure no track is shorter than four seconds. When you are confident you have corrected the problem. (delete all empty tracks) Then burn baby burn!