I was traveling and missed all the fun here... Good reminder on the guitar input jack. I have not tried this yet, but I remember reading this in the manual, just took a look and it is on page 22:

"NOTE
Be sure to connect the CD or digital audio player to the
AUX IN jack. If anything is connected to the INPUT
jack, no signals from AUX IN will be recorded.
With the factory settings, the RC-2 applies compensation
to the AUX IN signal so that it sounds appropriate
when played through a typical guitar amp.
When sound that's been recorded from a CD, digital audio
player, or similar source is played through a guitar
amp, the midrange and high-frequency range of the
sound tend to be emphasized.
If you wish to record the AUX IN signal without the
compensation applied, you can defeat it using the following
procedure."