On Jan 13, 2009, at 11:01 PM, Kris Tilford wrote:

>> Do anyone make a full size DVD RW, (tray loading),
>> that have ATAPI of the (ultra DMA mode 4)  type?
>> not the skinny slot version
>
>
> Yes. I believe they're all backwards compatible to whatever mode your
> motherboard's chipset supports.
>
> A newer DVD/RW will offer support for more types of media.

Definitely backward compatible, and the G3s and early G4s accessed  
the optical drive in DMA mode.

Thankfully, Apple elected to cable-up the optical drive with 80-wire/ 
40-pin cables, as this is necessary to drive the burners faster than  
8X, although the data rate is still below the 80-wire/40-pin rate  
(Ultra/66).



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