高密度記録技術、HD(High-Density)-BURNの開発 : CD-Rに2倍の容量を記録する方式  [in Japanese] The development of high density recording technology "HD=BURN" : "HD-BURN"enables us to record the double density data on a ordinary CD-R  [in Japanese]

市販のCD-Rメディア(type80 700MB)に2倍の容量(1.4GB)を記録できる高密度記録技術「HD-BURN」を開発した.本技術は既存のCD-Rを用いること、再生光学系はCD用ピックアップであることを前提に設計しており高密度実現のため最小マークサイズの縮小と変調方式及び誤り訂正方式を変更している.HD-BURNで記録されたディスクは既存のDVDプレーヤと親和性が高く、基本的にF/Wの変更のみで読み出しが可能となる.

We have developed the high density recording technology "HD-BURN" which enables us to record the two times volume data (1.4GB) on an ordinary CD-R media (700MB). This technology has been designed on the basis of using a CD-R disc and a CD optical pickup for playback optical system. Compared to CD-R, the miniaturization of minimum mark size, modulation and the modification for error correction method have been done to realize a high-density recording. A recorded disc by "HD-BURN" technology has an affinity of a DVD player, and basically, the player will be able to read the disc with some modification of firmware.