Currently, DVD recording systems are in a speed-up phase that is ultimately limited by the highest safe rotational velocity of the polycarbonate discs. Similar to the CD-R system that reached its maximum speed of 52x corresponding to 180 Hz at a disc radius of 55 mm, the DVD speed-race will end at about 16x DVD speed. The increase in recording speed is achieved by improvements of the recording media, the recording system and the write strategy. This article shows the feasibility of dye-based recording at speeds of up to 16x.
Read the full article at Philips: http://www.research.philips.com/InformationCenter/Global/FArticleDetail.asp?lArticleId=2848