LightScribe Vignetting Effect



Hi there!
If I print a LightScribe label twice on a disc both images do align but I get a vignetting effect which looks very ugly, especially in dark areas. The first print looks good beside the lack of contrast even with the LS contrast tool but with the second print I get some rings around the centre. I tested two pass labelling with a LG GSA-H31L burner and HP +R 16x CMC MAG M01 media (LS 1.2). Is the burner a RMA case, is the media not suitable for multi pass labelling or I’m doing something wrong?