Ripping Software - Real Audio to Mp3

Thinking of moving back to Mac platform.

Looking to find out if there is any software that rips real audio files into mp3 or wave and can be used on the Mac side.

I’m currently using a very old version Streambox Ripper (for Windows) which no longer offers that function.

Any info would be much appreaciated. Tonnes of real audio files that I would hate to trash or burn to cd.