While the DVD was highly successful in the pre-recorded retail market, it failed to displace VHS for in home recording of video content (e.g. broadcast or cable television). A number of factors hindered the commercial success of the DVD in this regard, including: A reputation for being temperamental and unreliable, as well as the risk of scratches and hairline cracks. Incompatibilities in playing discs recorded on a different manufacturer's machines to that of the original recording machine. Compression artifacts: MPEG-2 video compression can result in visible artifacts such as macroblocking, mosquito noise and ringing which become accentuated in extended recording modes (more than three hours on a DVD-5 disc). Standard VHS will not suffer from any of these problems, all of which are characteristic of certain digital video compression systems (see Discrete cosine transform) but VHS will result in reduced luminance and chroma resolution, which makes the picture look horizontally blurred (resolution decreases further with LP and EP recording modes). VHS also adds considerable noise to both the luminance and chroma channels.
While the DVD was highly successful in the pre-recorded retail market, it failed to displace VHS for in home recording of video content (eg. broadcast or cable television). A number of factors hindered the commercial success of the DVD in this regard, including: A reputation for being temperamental and unreliable, as well as the risk of scratches and hairline cracks. Incompatibilities in playing discs recorded on a different manufacturer's machines to that of the original recording machine Compression artifacts: MPEG-2 video compression can result in visible artifacts such as macroblocking, mosquito noise and ringing which become accentuated in extended recording modes (more than three hours on a DVD-5 disc). Standard VHS will not suffer from any of these problems, all of which are characteristic of certain digital video compression systems (see Discrete cosine transform) but VHS will result in reduced luminance and chroma resolution, which makes the picture look horizontally blurred (resolution decreases further with LP and EP recording modes). VHS also adds considerable noise to both the luminance and chroma channels.