Soon you can burn more than 8 gigabytes onto a DVD. Technology co-developed by drive maker Philips and media specialists Verbatim and Mitsubishi Kagaku, adds a second recording layer to a standard-thickness DVD+R disc The Register reports. That’s enough for four hours of DVD-quality material, 16 hours of VHS-quality content or two hours’ archive footage. The discs are playback-compatible with existing DVD players and DVD-ROM drives.