I bought these discs.
nero shows them as RICOHJPN
pioneero A06 shows burn speed of 2.5x
I have another very picky dvd drive that only likes certain media.
It reads these dvds ok, on occassion i do have to eject the dvd and reinsert it because it hangs on mounting the disc.
However the pioneer that burnt the dvds doesnt have a problem at all reading them.
So far i have burnt about 10 of them, one of the discs i have reburnt several times without any writing problems, Overall im happy with them.