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.
DVD-R can carry 4 gigabytes up to 4.7 gigabytes while a CD-R can carry 700 to 850 megabytes. This is equivalent to 73 to 99 minutes of sound recorded. 2. The DVD-R is more for high quality, and it has better definition than that of the CD-R.