A dual-layer, single-sided disc that allows data recorded on both sides to be read from a single side has the large capacity of 8.5GB.

To enable a dual-layer DVD disc to be read from a single side, the reflection film of the first layer of the disc is semi-transparent. Moreover, the bondingagent is also transparent to enable instant access from the first layer to the second layer and seamless continuous playback from the first layer to the second layer. Thanks to this structure, a maximum capacity of 8.5GB has been ach ieved.

A dual-layer, double-sided disc is made by back-to-back bonding of two dual-layer, single-sided discs and has four layers in total.

A one-layer, single-sided disc has a 4.7GB capacity enabling 133 minutes of storage which is sufficient for most movies. A dual-layer, single-sided disc has an 8.5GB capacity, and back-to-back bonding of two such discs achieves a 17GB capacity with 8.5GB per side. Thus, storage capacity of a maximum of 17GB, a remarkably large capacity, has been achieved.