What I meant was, in a sarcastic way of speaking, that most people would probably be inclined to say that level of the transport/disc is not critical since any unnecessary motion of the disc due to its non level condition during play or any other reason is accounted for by the servo mechanism that controls the laser when it gets off the nanoscale spiral data track. And, of course, Reed Solomon Error Correction Codes are supposedly going to correct any errors that occur anyway.
