i have an external memorex dvd+/-r/rw burner, and for some reason it'll only burn the blank memorex dvd+r. I've always used verbatims -r, and those won't even work with it. i use clonedvd and it'll say it's writing for about minute with no bars going, then it'll give me the error for bad media. this isn't the only burner that started doin this. i hooked an internal burner into another computer i had and it did the same thing. it was an nec burner. has anybody had these problems as far as the burners only burning one type of media?