Phase 1 : Disc out of the box

The disc was tested without undergoing any specific processing before testing. Present were some dust particles and handling defects such as minor scratches and fingerprints.

Blu-Ray burner	Plextor PX-B900A v1.00
Disc	TDK BD-R 25GB
Media ID	TDKBLDRBA (000)
Writing speed	2x CLV

- Measurements

Digital errors

Jitter

Reflectivity modulation

Servo & Tracking parameters - RADIAL2

All signals

The measurements reveal an extremely high UNC error count.

Pass 2 : Disc cleaned

Due to the extremely high UNC errors on this disc, we ran the measurements a second time after the disc was cleaned using air spray and special tissues. The results are illustrated below.

Digital errors

All signals

The results are impressive. Cleaning the discs's surface resulted in an amazingly lower UNC count (1), as well as lower BEC and BEL error rates. This behavior was expected since from what we have seen, Blu-Ray discs are extremely sensitive to dust and defects on the disc surface.

Rest of measurements:

Jitter - JFli, JRLi	Reflectivity Modulation- I8/I8H
Reflectivity R8H, R8Hrv	RADIAL 2