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How good is the resolution of DVD compared with VHS? The razor-sharp digital images have more than 500 lines of resolution at 720 pixels per line. This is more than twice as high as VHS and even better than laser disc quality. DVD picture quality is easily comparable to the digital masters produced in recording studios. What is a DVD+RW? DVD+ReWritable uses ‘phase change‘ media, the same technology on which rewritable CDs are based. A high-performance laser is used to change the reflective prope