Just upgrade my Lite-on 832 to an NEC ND-3520A. Not having KProbe at my disposal, I've been using CDSpeed to scan transfer rate. But I'm having poor scans near the end of the disc, regardless of burn speed using Maxell 4x DVD+R MIJ, which are RICOHJPNR01. I burned this media on my Lite-on at 8x with top notch PI/PIF results, but burning them on the NEC using 1.U8 at 12x, then 8x, then 4x, I'm getting scans similar to the attached scan. This particular one was burned at 4x, with the 8x and 12x being similar.
Now, Nero verifies the burns and doesn't find any errors. Should I be concerned?