Try using the Microsoft Plus! Analog Recorder.
Just connect your stereo output to an input on your PC, or better yet, connect your PC as a tape device using the tape monitor of your stereo.
The following is from Microsoft Plus! Analog Recorder:
Plus! Analog Recorder
Using Plus! Analog Recorder, you can transfer music from your analog audio device, such as a record, cassette, eight-track, or reel-to-reel player, to your digital music library. Analog Recorder steps you through the process of converting your music to digital format and then copies the digital files to your computer.
You can transfer a section of music, such as part of a song from a cassette tape or all the songs on a vinyl record. Analog Recorder attempts to detect the individual tracks within the music and automatically splits the tracks for you. You can then play the tracks, name them, and add them to a playlist in Microsoft Windows Media Player. You also have the option to split, combine, or delete individual tracks and to add copy protection to the tracks to prevent them from being played on other computers.
Analog Recorder provides several mechanisms to help improve the quality of your music. It adjusts the recording level for you, which helps to prevent distortion and other effects that might degrade the sound quality. It provides special filters that reduce the popping and hissing sounds within your tracks. You can also choose the amount of audio compression you want to apply to the tracks, based on whether you prefer better music quality or smaller audio files.
I use it and it works very well.
