I repeat again. Download Goldwave Digital Audio Editor (trial version) from www.goldwave.com Record your cassette in wave format using the program and save it.Close and open Goldwave again and open the file.Select a section in between the tracks (may be 2 to 5 seconds) where only tape hiss is present and click on "Copy" in the toolbar. This copies the selection to the clipboard.Now select the complete file and click on the Noise reduction tab in the tool bar.In the reduction envelope choose "use clipboard" and in the presets box select "clipboard noise print" and click on OK.Wait till the program executes the noise reduction. At the end you have all the music minus the tape hiss.Save the file. Now you can convert the wav file into mp3s using goldwave or any other program of your choice. The trial version allows you to execute only a limited number of commands.If you run out, just save your project, close goldwave, restart, open the project and continue.I have used the trial version for more than 3 to 4 years to convert all my cassettes to mp3s.At the end to say "thanks" and in fairness to the developers of the program, I purchased it and now have a licensed version.I do not use it anylonger since I have not purchased any cassettes in the last two years.