Just to concur what pinto2 said in post 21, I’ve found YUDEN000T02 media to write well at 16x too (see here). In my case I’ve used Plextor 8x DVD+R’s. Fortunately, for TY media the likelihood of getting bad media is very low compared with most of the others.
However, G@M3FR3@K has a valid point here. Not all media is equal, and this is likely to apply to TY media too, so occasionally overspeeding some media could give pretty bad results while writing it at its advertised speed gives very good results. What’s the brand of your TY media? Is it TY branded?
Furthermore, I find it very strange that a Plextor drive has problems with TY media. I’ve had my share of Plextor PX712A bad drives , but all wrote TY media well. Some better than others, but not nearly close to a coaster. If both PX712A and NEC3500 have problems in writing this media at higher speeds than 8x, you might have a slightly worse than usual TY batch. While unlikely, this can occasionally happen. To me, it is too much of a coincidence that both drives fail to write this media at 12x or higher … and lately I do not belive in coincidences at all
PS. Those who know me will certify that I’m the last person to blame things on media However, in this case this might well be …