CDs / DVDs are used to store different types of data / information such as music, recordings, computer files, photos, video clips and even full length feature length films. They are all the same physical size and usually the same shape.

2. Estimate the thickness of a CD / DVD disk.

ESTIMATED THICKNESS in mm = __________

4. What is the largest size of picture that will fit inside the case - and be seen through the clear plastic front?

5. What is the thickness of the case (in millimetres)?

THICKNESS OF CASE = ___________

6. Opposite is a typical DVD case. Measure the A and C dimensions (measurements), in millimetres. Write them alongside the picture.

7. What is the largest size of card sleeve that will fit inside the case - and be seen through the clear plastic front?

8. What is the thickness of the case (in millimetres)?

THICKNESS OF CASE = __________