Cause: Not all DVD-Writers are equipped to handle DVD-RAM. Unlike DVD±RW, DVD-RAM uses phase-change dual technology peppered with magneto-optic features. The main advantage of DVD-RAM is its defect management and faster access speeds. However, as we’ve mentioned, this format incompatible with most drives.
Solution: Select a drive that features support for DVD-RAM. Drives manufactured by LG, Hitachi, and Matsushita (Panasonic) have support for DVD-RAM.