Those are the new Sony 1-16x certified "Supremas", with blue/green dye. ATIP is as follows: ATIP: 97m 24s 11f Disc Manufacturer: Sony Corp. Reflective layer: Dye (Long strategy; e.g. Cyanine, Azo etc.) Media type: CD-Recordable Recording Speeds: min. unknown - max. unknown nominal Capacity: 656.40MB (74m 43s 00f / LBA: 336075) My results: While Sony discs made by other factories are generally consistent, this one, made by Sony, was pretty chaotic. Slowdowns on the outer 50% of the disc and sometimes the disc would just refuse to be read on both my readers, but yet again read (albeit slowly) when it was reinserted. Not recommended, some of the worst-performing discs I ever used. Edit: Forgot to say. Burnt at 16x on an LG GCE-8160b, latest firmware.