I almost worked out! I tried TAO and its failed several times.
When changing to automatic(cd,dvd) and change the TAO to DAO/SAO it burned 100%, but when i loading to my save file into the Thousand white blg its just freeze in the loading screen.
I use IMGburn from the isosite with the 3 DDL included, since Discjugger(what i used previously) dont support it anymore for windows 10 i jumped straight to IMGBurn. Thanks guys for the very quick replies!! Awesome, i went searching my 2nd dreamcast still didnt find it:(
Ok guys, when i burned last night i just gave up after ruin like 5 dics. I forgot to take out my cdr and left it in my pc. So i started the pc and the cd was written for 870* even when its told the burning was failed.
I took out the disc and put it in the dreamcast, guess what it worked!! Awesome, i dont know if i can play anything on this disc, because i don't know if its really got all data in it.
i am a happy dude for now!
As for the topic answer. I bought these cdr in china, but i used taobao.com or another site. Its sort of a negotiator between you and the site you want to order those disk from. I never did something like this before, but it worked out after a couple of reads how to do it!