Each drive successfully burned a DVD+RW disc at 2.4x, but each met troubles reading the outermost tracks – the read speed goes down there. The new model experienced a worse slowdown than the previous one, which led to the difference of 20 seconds between them. As for the burn quality, the Plextor PX-712A turns in better results. It has three times less PI errors and almost five times less PI failures. It’s easy to see the reason for the reduction of the read speed on the external tracks – it is the surge of PI errors there. The surge is higher with the new model, so it experiences a bigger speed slump. I can’t say the disc produced by the Plextor PX-716A is of a bad or mediocre quality. No, it’s a good disc, but it is strange its quality is lower than that of the disc produced by the PX-712A model.

TA Test for the DVD+RW 2x disc burned by Plextor PX-716A


 

It’s strange but the new model cannot keep the jitter rate normal. The jitter rate was going down towards the outermost tracks with DVD-RWs, but now it is almost constant. By the way, it is not the first device whose developers don’t care much about burning DVD+RWs at the min speed. Maybe quality improves at 4x speed?