DVD-ROM development has been quite mature. The DVD-ROM drive at high speed vibration is inevitable. In general, this vibration is due to the rotation of disc unbalance. How to effectively reduce the frequency of vibration is an important issue. The main purpose of this study is to investigate the dynamic behaviors of DVD-ROM by using the dynamic simulation software. DVD-ROM drive with high speed of the spindle motor caused the vibration. The modal analysis was performed by using ANSYS. The simulation results could be obtained and explained to understand the defects in vibration under resonance conditions. The analyzed procedures were using Pro/ENGINEER3.0 3D graphics software to draw the model, then importing the assembled solid model to RecurdynV7R5 dynamic analysis software. Finally, one could apply appropriate initial and boundary conditions to simulate this DVD-Rom numerical model.