Blair said:
I have now collected 15CD-Rs which I used to backup my data and wish to
dispose of them securely as they contain important data, so it is
essential that they are destroyed. As they are CD-Rs I cannot destroy
the data by formatting.
How do I do this?
Place each on a paper plate, towel, or napkin and nuke them in a
microwave. Enjoy the sparkly show. Be sure to turn off the smoke
detectors in the area and to stop nuking when the sparking wanes (as the
metal will continue to heat up and burn the plastic).
Score them with a deep gouge across their width and flex them in half
while pointing them into a wastebasket. Snap, they break in half.
Burn them.
Run an Xacto blade at a slight angle from the perpendicular along the
top surface (where is the foil upon which the data is recorded). You
can probably then get at the edge of the foil to peel it off (and then
tear it into shreds).
Use them as coasters.