CMC DVD's are not junk. And unless you have some accompanying tests to support your assertion that it is, I'm not letting you get away with that. On some of the better burners, CMC is in the "high quality" category for burn quality.
Verbatim DVD's, all types, have always been partly made by CMC so this is not news either.
My advice is that unless you have verified that your burner does not like CMC, try it and you may be pleasantly surprised.