Instruct: Classify a given review as either positive or negative.
Query: Ridata has gone downhill

I have previously used over 300 Ridata 4x media and have always had good success but the 100-pk of these 8x DVD's are terrible. DVD's recorded with Nero (ver 6.3 or 6.6) using 2 different computers produces DVD's that will not play all the way to the end without skipping and freezing around the last 1/4 area of the DVD. Nero reported no errors when doing a validation but on my 2 different stand-alone DVD players, they have trouble playing them all the way to the end. I've tried 2.4x 4x and 8x record speeds but still bad when playing back.I ran Nero CD-DVD Speed and Kprobe tests on these troublesome recorded DVD's and they show a lot of errors in the 2nd half of the DVD's. I also have some newly purchased Ridata 8x media with white injet printable tops that are also just as terrible. I have purchased a few other brands (Sony and Memorex) after this episode and they record and play fine. What has happened to Ridata???