This one clearly shows how biased digitimes is
First no word on infomedia. Infomedia had Philips (full) approval much earlier as any own media of Ritek and CMC. Infomedia is still making 16x DVD+R
Then next Optodisc is ignored. Why they talked earlier about optodisc 16x media having a price cut.
Same for PRinco however in that case you might be able to say maybe there not there because princo dvd recordable disc isn't a real dvd recordable disc thanks to not paying the correct licenses which are needed.
Also what is prodisc doing there ? They might make 16x rated recordables but under the current situation I think prodisc does not have all needed licenses so these disc's aren't DVD-R's or DVD+R's at the moment.
For Princo & Optodisc reference on digitimes check.
Trying to make something "foolproof" only forces nature to make a better fool.