what is the difference between a cd and a dvd?
 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.DVDs are more advanced in quality.The DVD-R is more for high quality, and it has better definition than that of the CD-R.DVD-R can’t be burned in CD burners while CD-R can be burned in DVD burners. 