I guess we need now to know the burner, firmware version & media you're using as it's most likely the media that's the cause.
With Nero's CD-DVD Speed and using the disc info tab and a blank disk in use the floppy icon at top right and save an image (in PNG format) & post it back here using the Go Advanced option & manage attachments.
That'll tell us a lot.
The PS2 might not accept DVD+R media but this can often be overcome by booktyping the disk to DVD-ROM. But not all burners will do this.