I've got a REALLY odd question.

A gal I work with's son has a medical condition where the treatment is they want him to listen to 2 seperate CD's one in the left ear and one in the right (I haven't asked a lot of details due to privacy) at various volumes to help focus concentration.

She's a single mom and I have a spare machine so I'd like to give her a computer with 2 CD-ROMs, and I'm wondering if there's either a software mixer or an audio program that will allow you to take 2 inputs (the two CD rom trays) and send 1 signal to the left output and the other to the right while controlling the volume for each channel independant of the master.

Please help me help this family.