U-TECH Launched Blu-ray disc 25/50 Production in Q3 2008, please contact ext. 8320
U-TECH offers turnkey Blu-ray disc 25/50 in house production service including compression, editing, authoring, replication, printing material, packaging, warehousing,etc. U-TECH will lead you into this revolutionary new format of Blu-ray century.

The structure of Blu-ray disc


BD Physical specification
Formatsingle layer
dual layer>
Volumn25 GB/50GB
Outer diameter/Thickness120±0.30 mm
0.1mm(bonding layer)+1.1mm(space layer)
Track Pitch/span>0.32 um
Redial Deviation±0.80 degree(Normal environment test)
±0.70 degree(sudden change enviroment test)
Tangential Deviation±0.30 degree
Reflectivity35%~70%(single layer)
12%~28%(dual layer)
Thickness of bonding layer between the layers25 ± 5 um
JitterL0:6.5% L1 : 8.5% max
Wave length of laser diode405nm
Numerical Aperture0.85

The structure of BD

U-Tech Media Co., Ltd.

No. 222, Huaya 2nd Rd., Guishan Dist., Taoyuan City 333, Taiwan (R.O.C.)     TEL :+886-3-3961111