I've been buying from purodvd.com . They're copies of videos or recorded from TV, and I haven't had any problems yet. All the images have been crystal-clear. They offer a test DVD offer to see if your player will play his discs.
P.S. - I didn't know that purodvd.com is based in Ireland when I first ordered (I'm in Canada), but the shipping time is only about 2 weeks, so it's all good.
Proud enough for you to call me arrogant
Greedy enough to be labeled a thief
Angry enough for me to go and hurt a man
Cruel enough for me to feel no grief...