Goldwave was a popular shareware recorder but there are better ones that are actually completely free. Audacity is a very good audio recorder available for Windows, Mac, and Linux.
One of the most popular shareware audio recorders is known as "Audacity". It has tons of functionality such as recording, splitting audio, reversing audio, volume change, etc... It does plenty for your standard PC user.
I had to look the answer to this up on the internet, and I found that the top result for the best audio shareware recorder was the replay Capture suite, again this is what I found on google so you should google it and find one that suits your needs.
Audacity and wave repair are the best audio recorders that I have used, but they are not shareware. They are freeware, which means that they are yours to use.