Cannot burn DVDs: Illegal disc

I have a HP DVD Writer dvd200i and can no longer burn DVDs. I can burn CDs just fine but when I try to burn a DVD nero and several other programs I’ve tried tell me that I have an illegal disc inserted. I’ve burned close to a thousand DVDs with this drive and the problem just started happening. I’ve looked at the forum for similar topics and found the most common reccomendation is to update your firmware or try different DVD+Rs. I have the latest firmware from HP (it’s from 2004) and I have tried several brands of DVD+R, including one from a box where they’ve worked for me in the past.

This drive is obsolete - time for a new one for under 30 bucks i think.