Singles vs EPs

The distinction between vinyl singles is usually pretty clear. Singles generally have one song on each side and EPs usually have two and come in a picture sleeve. It's not so clearcut with CD singles and CDEPs. Sometimes an EP may have four tracks and a single may have six. How do we differentiate? Well, as a general rule, we call it a CD single if one particular track is identified as the lead, or standout track, usually for radio play. If the CD has a title which is not necessarily one of the songs on the CD, we consider it an EP. Sometimes - particularly with dance CD's there will be a number of different mixes of the same song. If you see the title as "Borderline/(4 Mixes)" this means that the CD contains the track "Borderline" plus 4 additional mixes of the same song - making 5 in total.