Recording Music: Tracks Missing

>-----Original Message-----
>I have had this same problem with different combinations
>of computer (Dell Inspiron notebook and HP Pavilion
>notebook); sound cards (ESS in the Pavilion and SigmaTel
>Audio in the Inspiron); and sound recording software
>(PolderBits and Spin Doctor, and operating systems (ME
>and XP).
>
>When recording from an LP (record album) to my hard
>drive, certain audio tracks (such as the background
>vocals or the base guitar), that are on the original
>record album, are not captured in the digital recording,
>nor do they appear in the mp3 file once I have converted
>them from Wave files. While recording I can hear the
>full audio for each song over my loudspeakers, but when
>listening thru headphones plugged into the headphone

>of my computer to the same portion being recorded onto

>hard drive , I can detect that certain tracks are

>
>FYI, to make these recordings I use a "Y" connector with
>left and right RCA jacks that connect to a mini plug.
>The RCA jacks are connected to left and right audio
>output jacks in the back of my stereo amplifier, the

>plug connects with the soundcard of my computer via the
>microphone jack. When recording I have made sure to
>enable the "microphone" setting on the recording volume
>control for my soundcard.
>
>Sorry for the long-winded explanation, but this has been
>a frustrating problem and I'd love to learn how to do
>this right. Any thoughts or suggestions?
>
>.
>