RIDATA DVD+R DL 2.4x
The only dual-layer DVD+R disc in this review is a product selling under the RIDATA brand. Once again we had some problems: the Plextor PX-712A just wouldn’t recognize a loaded blank. The other three drives couldn’t achieve maximum quality in either test program. But although there are no formally good discs here, we can see that the LG GSA-4163B is the best of the optical drives. It is not a regular winner only because KProbe found a spike of 102 PI failures at the beginning of the recorded disc. Nero CD-DVD Speed, however, found only 3 failures, which is quite acceptable. So, the difference is colossal, what’s wrong? You can get an answer to this question by examining the graph of the scanning performed by KProbe. We just can’t see that 102-PI-failures-high spike there: the diagram says the entire disc has no more than 3 PI failures at most, like Nero CD-DVD Speed reports. So, the spike is probably a single and accidental thing. Thus, we consider the results of the LG GSA-4163B as highly satisfactory. This is another confirmation of our point that you should read carefully the surface-scan diagrams rather than just the resulting tables with numbers. The worst-quality disc came from the NEC ND-3520A.
Considering these results, we should say that our optical drives didn’t find the RIDATA DVD+R DL 2.4x disc a very digestible thing.










