CD media basics introduction to CD-R and CD-RW CDs Types of CD Recordable CDs Identifying CD types CD speeds Copy-protected CD-DAs Unbranded recordable CDs The Red Book standard Future disc standards CDs CD is the best sounding mass market audio medium ever. It will be replaced one day, but not soon. CDs are cheap, light, […]

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A 720p signal is made up of 720 horizontal lines. Each frame is  displayed in its entirety on-screen for 1/30th of a second. This is know  as progressive scan (hence the ‘p’)The quality is like watching 30  photographic images a second on TV. A 1080i signal comprises 1080  horizontal lines but all the lines are […]

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