Verbatim Disc's?

[Headly]

I was curious as to which Verbatim disc's I should be ordering. I have seen some labeled "for general" and "for authoring". I have gotten some Verbatim disc's for general and my dvd-rw drive doesn't seem to be able to pick up on them. I put them in the drive, it reads for a minute, and nothing. Did I get the wrong discs or did someone send me some bunk ones. I have a HP DVD writer 200i.