I have a brand-new Lenovo ThinkPad, which means that I have my cassette deck's RCA cables plugged into my laptop's mic jack (stereo tip).
Issues:
a) When I hit PLAY on the cassette deck, no music is heard through my laptop's speakers - until I hit "Start Monitoring"
b) The playback is incredibly distorted - sounding like someone is playing the song on a merry-go-round, getting LOUDER THEN softer then LOUDER THEN softer...
c) Unlike the Wiki instruction set, I cannot manipulate the Input (RED) sound level bars at all; clicking on them only stops or restarts monitoring - and the levels retain their pinningly loud range.
Is this worth it?