yes, but if you're using them like that, it really doesn't matter what brand you're using. So what I do is buy those stacks of 100 dvds for like 20 dollars, and I use those for every day use, when I don't care about how long they last. I've also bought Sony, which I assumed were better because they're a name brand and are also more expensive, but you never know. I haven't actually done any testing between the actual quality of the two brands I have.
I agree when you say that cheap ass Dvd's die in 6 months. My music Cd's which are handled everyday in the car get whacked in about 2 months, start jumping etc.