Fujifilm DVD+RW 4x
This DVD+RW from Fujitsu doesn’t comply with the ECMA norms when it comes to the allowable maximum of PI Errors. Well, I should confess that many other optical drives have done no better with this medium. This is the case when the drive is limited by the quality of the medium itself.
Philips DVD+RW 8x
Alas, the Philips DVD+RW disc that had been recorded well by many other drives betrays poor burn quality here. The maximums of errors of both types are higher than acceptable. The beginning of the disc is especially bad.
Digitex DVD-RW 4x
The quality of Digitex DVD-RW disc doesn’t meet the ECMA requirements. The maximum of PI Failures is above the norm. I suspect it’s not the drive’s, but the disc’s fault, though.
Verbatim DVD-RW 6x
This DVD-RW disc is recorded with high quality. It complies with the ECMA requirements for both types of errors. I might say that its quality is typical of good recordable discs rather than of rewritable ones.