"Aaron J. Grier" <agrier@poofygoof.com>  wrote:
 > These things are not good for your CD-ROM drive, since they're
 > inherently unbalanced.  The 3" CDs follow the ISO spec, won't strain
 > your CD-ROM, and hold more (180MB)...

Is that just speculation or based on some authoritative information.

the designs I've seen seem intuitively 'balanced'.