Mediums to preserve:
Reel to Reel
Transfers to CD
Transfers to DVD
Audio Terms Explained
Compact discs should be stored in their
cases vertically on edge, perpendicular to
Environmental conditions recommended for
other media are adequate for long-term
Always hold the
disc by its edges to help
keep the surface clean.
Use a clean, soft, dry cloth to remove any
loose particles of dirt, dust, oil, or fingerprints.
When cleaning the CD, never wipe it in a
circular motion. Use a straight movement
from the center outward to the rim.
An air gun should be used to blow off any light surface dust.
If fingerprints or other stains must be removed, 0.25 part of Tergitol 15-S-3 and 0.25 parts of Tergitol 15-S-9 per 100 parts of distilled water can be utilized safely. Carefully blot the area of the disc needing washing with a soft cloth (preferably a soft cotton that has been washed several times) imbued with a concentration of Tergitol and distilled water. Rinse well using a second cloth soaked in distilled water. Blot dry using a soft cotton cloth. Use an airgun to blow off any lint left over.
Avoid rubbing in any direction.
Do not clean the surface with any cloth
soaked in water, solvents (thinners,
silicon cloths, antistatic sprays,
Do not use a hair dryer to blow dust off
or to remove any moisture from the
1. Place pressure-sensitive tape, VelcroTM,
etc. on the disc.
2. Leave the CD in the drive overnight.
3. Bend the disc.
4. Write on or mar the surface in any
5. Make the center hole larger.
6. Scratch the surface of the disc while
loading or unloading the player or storage
7. Store or place the disc in a heated
CD trivia: The CD track is thinner than
a human hair and is about three miles long,
beginning at the center of the disc and spiraling out to the edge.
CD's have an effective track density of
16,000 tracks per inch.
After the information transfer is completed,
a transparent layer of plastic is applied
to the information side to protect the polycarbonate
substrate, a reflective coating placed behind
the information surface, and then a protective
- The compact disc is a laminate of 4 different materials. The bottom of the disc is made of polycarbonate onto which the pits containing the digitized sound information are stamped. A thin layer of aluminum is then applied, covering the pits. A thin lacquer coating (which becomes the top of the disc) is then applied to cover the aluminum layer, and finally the ink for the labeling