Your drive has done a bad job of burning those 'MBIPG101-R05-01' discs.
Try again at a slower speed - 8x or whatever.
Try buying better discs. The 'TDK' name on them doesn't mean anything, it's the MID/dye ('MBIPG101-R05-01') that's important.
Try cleaning the drive with a cleaning disc.
If all else fails, invest in a new drive. Yours must be 8+ years old now.