Uncorrectable errors on CD's

Discussion in 'Mastering' started by 4buster, Jan 11, 2002.

  1. 4buster

    4buster Active Member

    Dec 31, 2001
    Atascadero, Ca
    Hi, I've been mastering on a Sonic ssp system for about five years and had very little problems until recently. In the last few months the rate of CD's returned from duplication plants for "uncorrectable errors" has risen to about 20%. When I supply a new master cut on the same system the job finishes successfully but I'm concerned that my Sony 920 and 924 burners have seen better days. I sent test discs from both burners to a Clover Systen test this last week and was told that both drives show very low error rate until they get to specific spots and then go into very high error. But when the discs are run through the check several times they will pass the test on some runs....the guess was some kind of tracking error. Media is Taiyo Yuden silver74 min.Masters cut at 2x. Has anybody experienced these kinds of problems? Any solutions? Sure appreciate any help. Thanks, Rick Sutton
  2. Ang1970

    Ang1970 Well-Known Member

    Sep 5, 2000
    Try opening up the cases and see if there's any dust accumulated in there. If there is, vacuum it out and check your errors again.

    And... is it possible to check if both drives are writing errors to the same part of the cd? This would indicate a problem with your systems bus speed bottoming out rather than a mechanical problem with the cd drive, or possibly a defective media run.
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