Guys PLEASE if anyone can help I need to hear from you. Since installing iDVD4 I have had nothing but problems when I try to burn a DVD. Mostly I am getting error messages saying that something or other is wrong with the audio. I have not been able to find any solution on the Apple iDVD web page to resolve it (and judging from the number of messages from other people to the page, I am not the only one) The latest error message I got when I tried a third project stated.... Errors were found during the burning process. The recording device reported the media error: Power calibration area error. (0X73, 0X03.) My trash can is now full of disks that had to be trashed because iDVD4 will not complete the process. I am pulling my hair out at this stage. I am at my wits end... It is so bad that I started to cry with frustration today. PLEASE if anyone can offer me a clear suggestion I need to hear from you.