AccuCORE Brand Concept
Outline of Blu-ray Technology

The Blu-ray disc system not only employs a short wavelength blue-violet laser (405nm), but also uses an objective lens with a numerical aperture (NA) of 0.85. It’s small spot size can allows 5 times higher recording capacity than a standard DVD. The Blu-ray discs are designed with a 0.1 mm optically transparent protection layer, which diminishes aberration caused by disc tilt, yet is durable enough to protect the disc’s recording layer. The track pitch on the discs is a mere 0.32 μm, nearly half that of the DVD.

| What is “Blu-ray Disc”? | Application | Outline of Blu-ray Technology | Format Comparison |
| Recording/Playback Mechanism and Recording Materials |
| Recording/Playback Mechanism(-R) “Laminar Phase Separation” |
| Recording Mechanism (-RE) “Phase-change material” | Playback Mechanism (-RE) “Phase-change material” |