You can convert your MP3 or WAV files to different file formats, such as AIFF and WMA. The following are some suggested methods:

Download media players such as WinAmp (for Windows) and MusicMatch (for Windows & Mac). With these applications, you can choose multiple files and convert them all at once into the file format you desire. To do this, simply choose the files you would like to convert, define the file format to convert into and starting converting. These players are usually shareware programs that can be downloaded for free.

See List of Audio Players.

With audio editing applications such SoundForge and Adobe Audition, you will have more file conversion & editing options that give you more control over the conversion process. However, in most cases you can only convert one file at a time. To convert, import the file into the program. Select the file format you would like to convert the file into. You will have many more options with these types of programs. Experiment with the configuration options and listen to the results. Make changes if necessary to obtain the quality required.

Audio CDs are widely recognized and standardized to be supported by almost any programs available. Examples of popular audio CD burning software include products by Roxio and Nero. These products will pretty much automatically make the necessary conversions and produce a standard Audio CD with just a few clicks.