>>25
これが出てきた数字です。
write16倍速になってると思うのですがどうでしょう？

Drive Type = COMBO
Disc Type = CDR (A-)
Material = Phthalocyanine
Lead In = 97:15:17
Lead Out = 79:59:70
Nominal Capacity = 702.82MB (79m 59s 70f/LBA:359845)
Manufacturer Maybe = RiTEK Corporation
Smart-Burn Speed Limit = Wrt(16X),Rd(24X)