I have a bucnh of new DVDs, some have a sticker on the side saying "Security Device Enclosed", some didn't. Well, I did some investigtion and it seems that the ones without the warning actually didnt have security devices. Can anyone confirm that for me?

I just dont think they would warn you of security devices in every DVD movie that had one.

For the most part that is correct, if it says there is one in there, there almost always is, if it has no sticker most but not all will have no security device.