Abstract: A dual-layer recordable optical disc includes a first recording layer and a second recording layer disposed on the first recording layer. The first recording layer is made of organic material, and the second recording layer is made of inorganic material. The optical disc may further includes a first substrate, a second substrate and a bonding layer. The first recording layer includes a dye recording layer disposed on the first substrate, and a first reflection layer disposed on the dye recording layer, whereas the second recording layer includes an inorganic recording layer and a second reflection layer disposed on the inorganic recording layer. In addition, the second substrate is disposed on the second reflection layer, and the bonding layer is disposed between the first reflection layer and the inorganic recording layer. A manufacturing process of the optical disc is also provided to increase production yield and lower manufacturing cost.

Abstract: A dual-layer recordable optical disc includes a first recording layer and a second recording layer disposed on the first recording layer. The first recording layer is made of organic material, and the second recording layer is made of inorganic material. The optical disc may further includes a first substrate, a second substrate and a bonding layer. The first recording layer includes a dye recording layer disposed on the first substrate, and a first reflection layer disposed on the dye recording layer, whereas the second recording layer includes an inorganic recording layer and a second reflection layer disposed on the inorganic recording layer. In addition, the second substrate is disposed on the second reflection layer, and the bonding layer is disposed between the first reflection layer and the inorganic recording layer. A manufacturing process of the optical disc is also provided to increase production yield and lower manufacturing cost.

Abstract: A write-once high density optical information recording medium, with the recording medium made of a material having a formula of AxByCz, is formed by a special thin film coating process. There is a good contrast for optical reflectivity between the recorded marks and the non-recording areas, and the recorded marks can not be removed to be rewritten. The write-once high density optical information recording medium is easier to manufacture and is suitable for mass-production. And, the write-once high density optical information recording medium has good recording characteristics under blue laser wavelength, so that the data quality is improved remarkably and the data jitter is reduced. The multiple-layer film structure of the storage medium on the substrate of the optical disc includes a first protective layer, a recording layer, a second protective layer, and a reflective layer covering the second protective layer.