FWIW, if RB uses the same interface, thus the same convertors, it records as good a quality as any other DAW; the sound is converted to digital (numbers) before it ever gets to RB.

That's one aspect of selecting drivers; they affect convertors used. Example; I could use the line in on my laptop (yes it is has a Line In) but the onboard sound card would then doing to do the conversion to digital (yuck). Whether I use ASIO or MME, wouldn't matter.

It's true that MME will in the long run give the same sound as ASIO (IF the same device driver is used for both). However sometimes switching to MME changes the driver selection (for instance I have a decent USB interface that only works with ASIO, so if I switch to MME my convertors have to change) ..

Just another reason why driver selection is important, and can affect the quality of a recording.

As Del pointed out, sometimes the Windows mixer can come into play and add another layer of complexity. That was a good point. Especially when multiple options may be in play.

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