DVD9 disc (single-sided, dual-layer disc)Contains information on two layers. The outer layer is semitransparent and allows the laser to read both layers from one side.
DVD9 offers a capacity of 8.5 GB.
Params of disc
Sides : 1
Layers : 2
Capacity: 8,5 GB
DVD9 can hold an approximately 240-minute recording, depending on the recording’s structure.