Thirty years ago my band released and independent cassette. I still have the cassette and I am going to convert to a digital copy. I left music for 25 years, so I am completely ignorant of the current recording methods. We recorded the original on an old four track. Anyway, would it be possible to re-engineer the old recording if I bought the correct software? I am not sure if this is even a stupid question. Would love to give it a try and I welcome any recommendations.