LG GSA-4040B Slowwwww Burning - Why?

I’ve owned my 4040B for over a year and have consistently burned at 4X on Maxell media. Now for some reason I can only burn at 2X. I don’t even have the 4X option for burn speed in either Roxio or Nero. What gives? I have the latest firmware. Did Maxell change their media? I’ve tried Fuji, and same issue. Any ideas?

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