I would almost bet my mortgage on it being the RICOH dye on those discs, I have used some myself and they were very poor whereas I have never had a bad burn with Verbatim DVD+R DLs which is why we only recommend the latter.
Thing is with lower class media some might burn ok but most will not and will give you these problems you are seeing, as you can see your drive is unable to write to the second layer of these discs.
My advice is to give Verbatims DVD+R DLs a go