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Re: USB 1.1 too slow to burn DVD's?



On Wed, Oct 22, 2008 at 03:14:07PM EDT, Paolo wrote:
> On Wed, Oct 22, 2008 at 01:18:30PM -0400, Chris Jones wrote:
> > The old laptop only has USB 1.1 and I believe I read somewhere - can't
> > find where .. that this is too slow to burn DVD's .. only CD's.
> > 
> > Is there any truth to this .. any workaround?
> 
> %man cdrecord
> ...
> 
>   speed=#
>        Set the speed factor of the writing process to #.  # is an inte-
>        ger, representing a multiple of the audio speed.  This is  about
>        150 KB/s  for  CD-ROM,  about  172 KB/s  for  CD-Audio and about
>        1385 kB/s for  DVD  media. 
> ...
> 
> so, burning CD should be fine on "USB" (non Hi-Speed) which is limited to
> 12Mbps / 1.5Mbps, but DVD burning won't work since min requirement is 
> ~13.5Mbps sustained data rate. Hi-Speed USB (included in 2.0) tops at 
> 480Mbps, enough for the fastest DVD writers.
> 
> 
> -- 
> paolo

Thanks!

I'll read the doc .. but it looks like I really need to buy a new
laptop .. I was planning to do it this Xmas .. but what with the
"economy" I'm not sure it's the way to go any more.. 


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