Secondly since i have 3 outputs 2 have the same but only 1 different from both.those 2 values a constant values,how can i combine my two expressions so that it falls within 1 value..if not how can i group my XXX columns so that dog and cat cells merge together.. All replies.
DVD-R's hold 4,700 MB of data, a little more than 7 times that of CD-R's. Higher Order Cost: CD-R's hold fewer photos than DVD-R's. More disks will be needed if your placing a large order. Lower Order Cost: Because DVD-R's hold more photos you will need fewer disks when placing a large scanning order.
The capacity of a DVD is 4.7 GB. Given that the average movie is  700 MB, a DVD can hold at least six movies on it.