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Steve,

Yes, the media speed is readable by the drive. In fact, if you have a 
very high speed drive and software that supports it, it will actually 
tell you at which speed it can burn any specific disc that you insert in 
the drive.

I don't know if the info is written in bits and bytes, or if the 
software just performs a specific test on the disc... but the 
information is very acurately displayed by all software I have used on 
Windows and Mac platforms (I don't remember if my Linux software 
supports it as I haven't used it in a long time). So NetBSD software 
should be able to take that into account if it's well written.

Gilles.

Steven M. Bellovin wrote:

>In message <20050821224204.GB21@vigor10.my.domain>, Mark Weinem writes:
>  
>
>>On Sat, 20 Aug 2005, Nathan J. Williams wrote:
>>
>>    
>>
>>>Yeah, the firmware [...] claims to support
>>>16x DVD-R and the media 8x (according to dvd+rw-mediainfo).
>>>      
>>>
>>But that only works for media really tested with the drive (and
>>supported from the firmware). If the firmware supports your 8x media you
>>will get 8x burning speed (possibly even higher speed!). With no media
>>support you will get 4x or maybe only 2x burning speed.
>>
>>DVD-Burning is about firmware, media quality and media
>>compatibility! 
>>    
>>
>
>I'm confused -- is the media speed readable by the drive?  My son is 
>having problems (on a Windows machine) with some disks that *should* be 
>compatible, but Windows refuses to touch them.  
>
>		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb
>
>
>  
>

-- 
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