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-Rs can hold up to 4.7 gigabytes while a CD-R can only hold up to 700 megabytes. However, when the DVD-R is formatted, it can only hold 4 gigabytes. CD-Rs can hold 74 minutes or up to 99 minutes of music. Also, when it comes to definition, DVDs are more advanced in quality.