From: Pedro Venda <pjvenda@rnl.ist.utl.pt>
To: Karel Kulhavy <clock@twibright.com>
Subject: Re: CD writer is burning with open tray
Date: Thu, 29 Sep 2005 16:43:38 +0000
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On Thursday 29 September 2005 14:19, Karel Kulhavy wrote:
> Hello
>
> The activity LED is flashing or shining even when the mechanics is open
> and I can look into the laser lens!  However I didn't see any dim red
> light - looks like the laser switches off when the tray is open.
>
> Is it possible to get eye damage due to faulty kernel driver?

as DervishD already explained, the kernel driver doesn't, but lasers can=20
easily cause severe irreversible eye damage. doesn't matter if you actually=
=20
*see* the laser beam. NEVER use a non-closed cd drive (either standard simp=
le=20
stereo units or dvd burners, they all present similar dangers). most drives=
=20
have hardware safety features that disable all lasers when tray is open, bu=
t=20
some other may not...

[]
=2D-=20

Pedro Jo=E3o Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://arrakis.dhis.org

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