Even at 1x, the lead-in of CD is at the spindle, being an inside-out,
underside "cut." So, the rotation is still fastest right when it's trying
to start the program in order to achieve CLV with the code of the coda.
Fortunately, 400 rpm or so is far from shatter speeds. (Unless this is a CD
of Some Girls.)
Good luck, Uncle Dave. Hopefully you can trick a player into playing nice
with it. How about snapping off a similar sized dog ear from an unwanted CD
and super gluing that piece to bridge as much of the missing mass as
possible? As long as you get the transfer...
Andrew
On 11/7/11 5:43 AM, "Don Cox" <[log in to unmask]> wrote:
> On 06/11/2011, Jerry Hartke wrote:
>
>> Do you mean that the computer does not recognize the disc or the
>> drive? If the latter, then the drive or other hardware has a problem.
>> If the former, then there may be other damage to lead-in at the inner
>> part of the disc, and the chip may not be the issue.
>>
>> An edge chip that does not extend into the information area would only
>> create unbalance that would not normally have an effect because audio
>> CD discs play at 1X.
>>
> They play at 1x but a computer drive is likely to start by mounting the
> disc at a higher speed.
>
>> No drive will mount a disc with damaged lead-in, but you can always
>> try your problem disc in another drive, preferably a high quality
>> writer.
>>
> It might work in an old drive that only goes at 1x speed, such as a
> drive that uses caddies. This would have a SCSI interface and would need
> an old computer with a SCSI card. Look in the store room.
>
> Regards
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