A slim optical disc drive in a portable computer, includes a main body, a tray, and a front panel. The main body includes an upper frame and a lower frame. The tray is installed in the main body to be loaded and/or unloaded and includes a spindle motor to rotate an optical disc and an optical pickup to record information on and/or reproduce information from the optical disc. The front panel is combined with a front side of the tray. A front end of the upper frame is supported by the front panel so that the upper frame is distorted downward by a load.