Zortam's Mp3 Media Studio is a free piece of mp3 converting and tagging software. Zortam has this free version of the Mp3 Media Studio and also sells different mp3 components. Within this free software, you're able to rip CD's, convert to mp3 or WAV and vice versa, mp3 tagging, and normalization as well. It's pretty easy to use software as I've been using it to organize one of our libraries for a music publishing company that I work for. This isn't the main software that I use to organize our library, but it's still useful and I do end up using it a good amount. I don't know the exact compatibility of this software, but I'm currently running it on a PC system. The computer is a Fujitsu LifeBook C1320D Notebook that has a 2.0 Ghz processor and just a GB of RAM. Of course this isn't the quickest computer, but it's enough to get the job for running this software. Converting files isn't the quickest in Zortam, but this probably has more to do with the computer you're running it on than anything else. It's definitely nice to have all of these features in one spot for organizing your mp3 library. You can find free versions of software for everything that can get done in this, but I don't know of too many other free pieces of software that offer up everything in one place like Zortam does. The Mp3 Media Studio is available right from Zortam's website, but make sure you get the studio version and not the pro as it'll cost you some money, as will the other pieces of software that they've got. I can't speak to how the other versions of Zortam work, but as for the free Mp3 Media Studio, it's definitely worth checking out.