Ultron CD-R 40X 50pcs for 12eur (Germany/Belgium)

I just bought Ultlron 50 pack spindle at

www.bora-computer.de

and here is what it says:

ATIP: 97m 15s 17f
Disc Manufacturer: Ritek Co.
Reflective layer: Dye (Short strategy; e.g. Phthalocyanine)
Media type: CD-Recordable
Recording Speeds: min. unknown - max. unknown
nominal Capacity: 702.83MB (79m 59s 73f / LBA: 359848)

How do these CDRs perform?

Are they coated?

They perform pretty well on Teac and LiteOn. I even burnt several of them at 48X since they don’t have speed limit, and I did not get too many errors. They are not coated, but the quality seems to be quite good. They have printed Ultron logo on top of the reflective layer.