Agree, Plextor and Pioneer are better. There are several reviews out there.
If you get a REBADGED unit beware that sometimes there are some differences.
Also, regardless of which unit you choose, use the best quality DVD blanks. There are so many cheap bad labels of blanks.
Among the best are Maxell -R 4X( 8X ones are not as good), made in Japan, and Optodisk -R, 8X.
Use a low to mid-range burn speed until you get to know your burner, and disconnect fron the internet and disable your antivirus prog while burning.