they are removable optical disk
Cameras, CDs, and DVDs
Yes there is Free DVD Cloner that is a program for Windows that allows you to Burn or grab any type of CDs or DVDs [Data CDs (or Mode 1 ISO CDs), Audio CDs] from an ISO image file. you can also burn and grab data DVDs, HD DVDs, Video DVDs and Blu-ray disks (ISO) .
Yes their is more cds than DVDs
These are all types of secondary storage devices.
DVDs or CDs
4 to 3
Formerly they had, but nowadays when compared to pendrives they have a small storage capacity, do not surpassing 700 MB. The tendency of storing devices is directed to pendrives due to their inumerous advantages.
I would shop at FYI if I was you :) They have many selections of CDs and DVDs there.
Aluminum.
Yes. The drive type is DVD-Writer, which reads and writes to CDs and DVDs.
Harddrive is magnetic. Optical storage devices examples are CDs, DVDs etc. Source: IGCSE TCI student :)
Use MED Free DVD Cloner you can also burn and grab data DVDs, HD DVDs, Video DVDs and Blu-ray disks (ISO) .