Due to the track or size limitations of some discs or the desire to create a single track when burning a CD, you may need to combine multiple CDA tracks into one MP3. CDA tracks are visible when viewing the contents of a CD in Windows Explorer. These files contain information about the audio tracks but are not the actual music tracks. To merge audio tracks into one MP3, you must first rip or extract the music from disc to hard drive, then you must use audio software to merge the files. Prior to beginning this process, check your hard disk to ensure that you have enough space for storing and combining your MP3s. Writer Bio