 The SVCD format is especially prone to "foldover" because the 480p format doesn't fit well over a 720p output.The aliasing artifacts that result from this bad fit are usually buried in noise from other sources, such as camera, quantization, and MPEG artifacts.China Video Disc (CVD) is a CD-based video format which was created during the development of the SVCD standard and is almost identical to SVCD.