Burn at 1x or 2x??

[Serpent]

Got my A04 set up.

First time, it gave me a buffer over run error.

Updated firmware (thanks BG!!). Downgraded to PIO mode.

Then did at test at 2x which completed successfully.

Now question: will it be ok if i burn dvd-r at 2x and in DMA mode? Or is 1x in DMA mode ok?

The reason i ask is because in PIO mode, my computer slows down like hell.... I can't do anything while Primo is running.

Thanks!!