Ulead has announced their software will support burning of
DVD 9. I've only known about the hardware requirements for dual layer. Not sure right now what role the software will play, but I guess it's nice to know.
I've always been kinda skeptical about discs claiming they're extended play. Discs right now claiming they'll hold 4.7 GB is kind of a stretch, considering most manufacturers are using the decimal number system to get that count. To a computer, since they use binary number system, that actual number is 4.37 GB. No manufacturer would ever state the actual truth, since their competition is going to claim 4.7 GB (Base 10) and anyone who would correctly label their disc as 4.37 GB (Base 2) is going to be outsold.
Then you add that the DVD disc design supposedely has the potential to hold has much as 18+ GB. I'm not sure how those claims can be made. I'm think quadruple layering or a smaller laser? It's all just a conspiracy to keep us buying the newest products over time.