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The resulting video, especially when it is complex or changing quickly, may sometimes contain visual flaws, depending on the processing quality and amount of compression.
At average video data rates of 3.5 to 6 Mbps (million bits/second), compression artifacts may be occasionally noticeable.
Jim has been in the DVD business since before there was a DVD business.
In 1995 he found out about the upcoming DVD format and began writing articles to let others know about this amazing new technology.
Higher data rates can result in higher quality, with almost no perceptible difference from the master at rates above 6 Mbps.
As MPEG compression technology improves, better quality is being achieved at lower rates.
The difference is similar to that between CD-ROM and Audio CD.DVD is vastly superior to consumer videotape and generally better than laserdisc (see 2.7.).However, quality depends on many production factors.Video from DVD sometimes contains visible artifacts such as color banding, blurriness, blockiness, fuzzy dots, shimmering, missing detail, and even effects such as a face that "floats" behind the rest of the moving picture.It's important to understand that the term "artifact" refers to anything that is not supposed to be in the picture.
There are also special application formats for game consoles such as Sony Play Station 2 and Microsoft Xbox.