Good: JK Audio QuickTap. Not so much: RadioShack Recorder Control.
We first tried the Radio Shack Recorder Control, which worked, but gave us a noisy recording. Of course it was done in the presence of a few desktop computers, but even with some noise removal in Audacity, the quality just wasn’t quite there.
As for the JK Audio QuickTap, it is twice the price, but so far it’s showing a lot more promise as far as good quality recordings…