CD Vs. DVD Storage Capacity

CD-R

• The disc with the least amount of storage space is the CD-R, which can hold 700 MB, or approximately 80 minutes of audio.
  
  

CD-RW

• A CD-RW has the same storage capacity as a CD-R, but data can be removed and replaced, unlike the CD-R which can only be burned once.
  
  

DVD-R

• DVDs can hold significantly more data than CDs. DVD-Rs hold approximately 4.7 GB of data. And unlike CD-Rs, DVD-Rs can burn videos that can be watched directly on any DVD playing device.
  
  

DVD-RW

• A DVD-RW has the same storage capacity as a DVD-R, but its benefit is that it can be recorded multiple times. These discs are the best choice for people who use DVD video recorders with their TVs.
  
  

Double Layer

• Double layer discs available for blank CDs and DVDs offer twice the usual storage capacities.