 ... Notes on the Troubleshooting and Repair of Compact ... All this while the target track below you is moving both horizontally (CD and spindle runout of 0.00 mm) 0 mile and vertically (disc warp and spindle wobble of up to 0 mm) 0 miles per revolution! In addition, you are trying to ignore various types of garbage (smudges, fingerprints, fibers, dust, etc.) below you which on this scale have mountain sized dimensions. 