Okay, I'm definitely a noob around here, but am pulling my hair out trying to sort this out.

I have an nec 3500 burner that has been great for 3+ months. Recently I have been unable to read any DVD+Rs (RITEK R03) that I have made. DVDInfoPro and Decrypter both say that the DVD is blank (not a DVD-Video). I have made several DVD+Rs with decrypter using iso read/write, and also just through nero. I have switched between the liggy (218_Fliggy_Ritek_SE), quickee (2.18_QV3ME), and official nec 2.18 firmwares. I cannot get my nec burner to recognize any of these discs. I am able to read any DVD-R, DVD-RW, DVD+RW discs that I have burned. All of these DVD+Rs at issue play in my set top player.

Here's where it gets weird, my buddy is able to play/rip these DVD+R discs just fine in his nec 3500. I am also able to read/rip any DVD+Rs burned in his machine. What also really confuses me, is that when I first burned couple of these, I thought I verified that the Book type was correctly set to DVD-ROM, so I feel like at one point these discs read just fine in my machine. I did do a round of windows updates (including Windows Media Player 10), but I have since rolled back all those updates, and even reinstalled the dvd drive.

Any suggestions are MUCH appreciated.