What is CD unbalance? Why do I keep hearing about it?
• Why do CD discs fail in some drives but are readable in others? • CD discs work great in our test drive. Why do they fail in some 40X and higher speed drives? • Fragile CD discs are causing user problems. They crack or even shatter in high speed drives. What causes this? Discs appear to satisfy the standards. • My CD-ROM discs sometimes contain milky areas when viewed from the readout side. When I call this to the attention of their manufacturer, I am told that the effect is only cosmetic. Sometimes I cannot read such discs. Is it possible that my quality problems are related to this unusual appearance? • ISO, ECMA, and ANSI Standards for diskettes designate PTB Reference Material. CD-ROM Standards do not. Why? • I do not obtain the same CD test results using test equipment from various vendors or even with different testers from the same manufacturer. Why cannot these CD test equipment manufacturers achieve correlation? • I thought compact discs were bulletproof. Why do I hear that
