I created a Disk Image in iDVD on my eMac. I transfered the Disk Image to the iMac (Intel 2ghz core duo, Matshita UJ-846). In Disk Utility, the eMac said Max burn speed was 4X. The iMac said the Max was 2X. These are new DVD-R disk that are "Labled" 16X single layer (Office Depot Brand). I started the burns at the same time just to see and the eMac smoked the iMac. What gives? The eMac never shows 8X either. Am I doing something wrong or is it the DVD disk?