Pass 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	Verbatim BD-RE 25GB
Media ID	VERBATIM0 (000)
Writing speed	2x CLV

- Measurements

Digital errors

Jitter

Reflectivity

Reflectivity modulation

Mechanical parameters - RADIAL2

All signals

Pass 2 : Disc cleaned

The specific disc was cleaned using professional air spray and special tissues. The disc was measured again, and the results are illustrated below.

Digital errors

Again, cleaning the disc lead to completely different results. All digital errors were lower this time, and specifically, the UNC maximum value was limited to 2 (as opposed to 2728 previously), and the average UNC count is down to 15T from 5456T.

All signals

Rest of measurements:

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