UDMA and ATA?

[Windsor]

What's the difference??

[Grimm]

I think one is the standard and the other is the actual interface. But the terms are interchangable in use.

[Bires]

UDMA is the standard or the name of the interface. ATA is the acronym of the technical interface.
UDMA 5=ATA100
UDMA 4=ATA66
UDMA 2=ATA33