Pioneer Dvr-a05u


I have a G5 and am running Mac OS 10.4.2. I replaced the Sony SuperDrive so that I could burn double layer DVD. I sometimes have trouble getting the DVD tray to eject so that I can change CDs or DVDs. The only way to get this to work is to reboot and I have to do it manually because the DVD drive is not responding. Is there any other work around or driver available?