PRINCO (PRINciple of COating) was founded in Science-Based Industrial Park Taiwan in Sep 1983 and Specialized in the development of thin-film technology. With minimal external technical assistance or additional support, the dedicated and innovative PRINCO engineering team has built its technical reputation as a leader in thin-film technology. Through those years, this research and development oriented company has achieved one success after another.In Addition to Tool-Coating, PRINCO is also heading to his goal step by step as a world-famous optical disc manufacturer. In year 1990, the 1st optical storage product, the compact disc (CD) went into mass production. During the 90's, many products such as laser disk (LD), Magneto Optical (MO), Compact Disc Recordable (CD-R), and Compaq Disk Re-writable (CD-RW) went into mass production. Until now, CD-R and CD_RW of PRINCO still possess a great deal of market share among the world.Furthermore, in year 2001, the latest products of Digital Optical Division, Digital Versatile Disc Recordable (DVD-R) and Digital Versatile Disc Re-rewritable (DVD-RW), went into mass media production successfully.Those two products have become the highest stars in the optical disc field.