You can record any audio tape to your computer in a few different ways. If your tape player has left and right audio output just connect that to you computer's sound card left and riight audio. If your computer sound card doesn't have a left and right audio you will need a stereo Y jack. Left and right audio on one end and stereo mini jack on the other (that will go to your computer's sound card.

Then all you have to do is play the tape and record to one of the many programs out there that will capture either wav or mp3. It's real time so it will take some time but it usually worth it. The better your sound card - the better the transfer will be.

For simple easy to use capturing programs I use Super MP3 Recorder - it used to be free but I think it's about $30.00 now.

http://www.supermp3recorder.com/

This is as easy to use as a mechanical tape player - even the buttons are familiar. It will record either wav or mp3 format. Set it to listen to "What you hear" and it will record anything going through your sound card.

A big step up in quality programs is Adobe Audition which is what I use now.