Instruct: Classify Amazon reviews into positive or negative sentiment
Query: poor tech support

I purchased this 708UF due to many good reviews (unbelievable - all gave this 5 stars). I read system requirement and compare different bands and chose this one. I've this less than two weeks and it took 6 hours to copy a DVD. The rate is only 0.01x. I would not expect this to be 8x as advertised but I was expecting at least 4x. I tried different brand of 8x DVD+&- including Sony but the snail speed. I contacted to Plextor tech support and told me to update my USB. I've WinXP with SP2 and the USB2.0 is fully functioned. I tried with different PC but the speed is slower than a snail, 0.01x. I contacted to Microsoft and I've the most recent driver update. This plextor tech support person was unhelpful and unresponsible for their product - contrary to their advertisement. Don't by this product unless you're expert to fix all problems by yourself and you don't need tech support.