Wow! So many recommendations here! Thanks. I'd suggest you to try this software for joining and splitting audio. I've been using it for almost 2 years and it works like a charm!

I'd recommend to try more universal and handy tool Audio Converter Studio for ripping CDs to any audio format. It helped me many times and might be useful for you as well. It's simple and intuitive even for inexperienced users and produces output files with perfect sound quality.