Enhanced CD (E-CD) is a compact disc (CD) format that enables discs to be played on either a CD player or a multimedia-capable device, such as a CD-i player, or a DVD-ROM, or CD-ROM drive, where added material can be displayed.

E-CD, is used to refer to any audio CD that has CD-ROM data added. Most audio CDs use only about 60 minutes-worth of the disc's 74 available minutes-worth of space; E-CD takes advantage of the unused space to include extra data on audio CDs.

Recording artists have used E-CD technology to include video clips, artist profiles, lyrics, interviews, animation, promotional material, and even games on audio disks. Synergy has created E-CDs for many leading artists and has developed tools using Macromedia Director to quickly develop product. We can also create E-cards and artist Web sites.