Guys, yes, at first I couldn't burn at 8X but only at 6X.
Now, using Nero, it allows 8X, but I haven't tried it.
I went ahead and burnt it at 16X.
The dvd freezes for like 5-6 secs, and then plays.
It does that like 3 times in the first 10 mins and then plays fine the rest of the way.
I'll try it at 8X as it is supposed to be.
But I guess Nero allows the media to be burned at 16X while burnatonce only allows it at 6x.