http://202.224.189.178/~sgml/viewing/SA-HT822VP/ALL/SVC/s1203000000.html
12.3 Storing and Handling Test Discs
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Surface precision is vital for DVD test discs. Be sure to store and handle them carefully.
1. Do not leave the discs uncovered on the work desk or other places after use.
2. Handle the discs carefully to prevent scratches. Put each disc in its case and place it in the standing
position. Store the discs in a cool place and avoid direct sunlight or air conditioner.
3. Accurate adjustment cannot be expected with a disc warped against a flat surface. Obtain a new test
disc for optical adjustment.
4. If a warped disc is used, adjustment would result incorrectly, and other discs could not be used.
http://202.224.189.178/~sgml/viewing/SA-HT822VP/ALL/SVC/s1203000000.html9/3/2004 9:43:40 AM