LG GGW-H20L not writing DVD+Rs at 16x

I got an LG GGW-H20L Bluray burner and have been trying some “create disc” scans through nero discspeed on some DVD+R media, but it won’t reach 16x.

it’s Sony 16x DVD+R media: “SONY D21”

Here is the scan:

According to the thread at: http://club.cdfreaks.com/f142/lg-ggw-h20l-scans-discussion-here-234488/index6.html it does fine and goes to 16x but mine just starts to write at 12x when it reaches a certain point.

I’m a bit of a noob when it comes to this type of stuff and I apologize if I’m posting anything with improper netiquette. I’m just kind of frustrated. Could it just be a bad batch of SONY D21?

Try with Verbatim media.