Hey everyone, i recently reinstalled the system software into my computer and updated all the way to tiger, in antisipations for the new tiger. In the process i reinstalled the iMac Firmware update for the iMac and it said it had already been installed, which i had done previously but was unaware of remained even if everything on the hd was erased, the installation finished anyway and i continued, now whenever i try burning a DVD, both in the finder or/and in toast 6, i get a Buffer Underun error and the disk becomes useless, in the process of trying to get to what the problem might be i went through 10 dvd-r and still the same buffer underun problem, with no sucess in burning a single dvd-r this problem had not arisen before and i had secessfully burned dvd's in the past, does anyone have any insight or previous experience into what this may be, or how i can maybe uninstall the firmware update, in order to be able to reinstall it, i feel like the problem maybe be related to it but im not sure. Any help will be highly appreciated. Thankyou