Capacity and Layers Info
The manufacturing process is similar to that of CD-ROM where as a glass stamper is formed in order to produce a nickel stamper which in turn makes the DVD discs.
The final DVD disc can be a DVD-5, DVD-10 or DVD-9 depending on the data size and whether a double-sided disc is acceptable. DVD-9 and DVD-10 discs will require two DLTs, one for each side/layer
| DVD-5 | DVD-9 | DVD-10 | |
| Diameter of the disk | 120 mm | 120 mm | 120 mm |
| Thickness of the disk | 1.2 mm | 1.2 mm | 1.2 mm |
| Number of sides | 1 | 1 | 2 |
| Number of layers | 1 | 2 | 2 |
| Diameter of center hole | 15mm | 15mm | 15mm |
| Capacity | 4.7 Gb | 8.5 Gb | 9.4 Gb |
| Storage (min. of video) | approx. 133 | approx. 242 | approx. 266 |