Read burned DVD-R w/o eject/load



I constructed application using Nero COM 1.3. This application burns and verify CD and DVD successfully on desktop computers. The application verify burned files itself by reading. Before verify (read) burned files, I call EjectCD() and LoadCD() for operating system can refresh DVD contents.
Problem: But now customers begin runs the application on notebooks, where DVDR drive is not support LoadCD()! Burned DVD-R ejected but not loaded. So the application can not verify/read burned files.
Question: How refresh burned DVD-R contents w/o Eject/Load?