writing double layer Dvd's

[Anne Wilson]

On Sunday 03 December 2006 06:43, Ric Moore wrote:
> On Sat, 2006-12-02 at 16:01 -0600, Aaron Konstam wrote:
> > On Sat, 2006-12-02 at 12:04 -0500, Ric Moore wrote:
> > > Sure, I could Google, but I don't trust "them" as much as I do you. I'm
> > > about to write an iso file to a double layer Dvd. I'd like to hear just
> > > what is a good burn speed. The box sez no more than 8X. Well, what
> > > would be better? 1X? 2X? 4X? I'd rather it not take the weekend to burn
> > > 7.4 gigs. But, these darn disks are expensive. I really don't want to
> > > make a $4 coaster. What say you?? Any caveats? Thanks, Ric
> >
> > run: cdrecord -prcap
> >
> > It tells you things like that.
>
> Mine reported:
>   Maximum read  speed:  8467 kB/s (CD  48x, DVD  6x)
>   Current read  speed:  8467 kB/s (CD  48x, DVD  6x)
>   Maximum write speed:  8467 kB/s (CD  48x, DVD  6x)
>   Current write speed:  8467 kB/s (CD  48x, DVD  6x)
>   Rotational control selected: CLV/PCAV
>   Buffer size in KB: 2048
>   Copy management revision supported: 1
>   Number of supported write speeds: 9
>   Write speed # 0:  8467 kB/s CLV/PCAV (CD  48x, DVD  6x)
>   Write speed # 1:  7056 kB/s CLV/PCAV (CD  40x, DVD  5x)
>   Write speed # 2:  5645 kB/s CLV/PCAV (CD  32x, DVD  4x)
>   Write speed # 3:  4234 kB/s CLV/PCAV (CD  24x, DVD  3x)
>   Write speed # 4:  2822 kB/s CLV/PCAV (CD  16x, DVD  2x)
>   Write speed # 5:  2112 kB/s CLV/PCAV (CD  12x, DVD  1x)
>   Write speed # 6:  1764 kB/s CLV/PCAV (CD  10x, DVD  1x)
>   Write speed # 7:  1411 kB/s CLV/PCAV (CD   8x, DVD  1x)
>   Write speed # 8:   706 kB/s CLV/PCAV (CD   4x, DVD  0x)
>
> But I took Kurt's advice, burned at 2X and now am the proud Papa of a
> brand new Dvd. From this list I could burn at 6X?? Ric

FWIW, Ric, I have always found that as a rule of thumb, half of the stated 
maximum is the best for burn compatibility with all readers.

Anne
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