I can tell you right now those discs are not working anymore. They seem to have produced a bad batch in 2013 during the summer as before that we could all burn them. I don't know if it is the manufacturing materials or the process has changed but that brand doesn't work for anybody anymore. I am getting in some discs from my friend in Japan soon as he shipped them out to me on Monday so if you want I might be able to help you out.
I know not the name of the brand as they are completely white and blank on the face, but I know they work I tested the disc on 2 Dreamcasts and they were the only ones out of 4 brands I have tested over the past 2 months to be working.