Appropriate Dual Layer (DL) disc speed for new Mini?

[comiconline]

I just got the new Mac Mini. I want to take advantage of using dual laer discs, but i'm not sure which kind to get. It seems Verbatim is among the most reliable, so i figured i would go there. But what speed is appropriate?

Verbatim makes DVD+R DL discs in 2.4x (up to 6x) and 8x (up to 10x). The specs on the mini indicate it tops out for DL with 6x. Does that mean i need to use the 2.4x discs, since their top speed is the same?

On the other hand, since the drive is considered an 8x drive, and the faster Verbatim DL discs are called 8x, maybe those are more appropriate.

Obviously, burning at a faster rate would be nice, but i'm more concerned with compatibility. The online help person on the Apple site said 8x should be fine, but the Apple Store only sells 2.4x. That makes me even more confused. Since the DL discs are more expensive, i don't want to waste my money getting the wrong speed. Anyone have any experience here?

Thanks so much.
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Mac Mini (2009) - 2.0gHz CPU - 120G HD - 4G RAM

[mdgm]

[Coldfire]

Shouldn't the speed be chosen according to what the TARGET drive is capable of reading at?

I burn music from Toast and on the odd ocassions where I forgot to set a slower speed, the CD-R would only play on the Mac but not on the Bose music system. OK, the latter is a little old but you get the point.