burn DVDR faster than 1.30x
James Wilkinson
fedora at westexe.demon.co.uk
Tue Sep 13 16:44:43 UTC 2005
Peter Magnusson wrote:
> I cant burn DVDR's faster than 1.30x or something like that. cdrecord says:
> cdrecord: DMA speed too slow (OK for 9x). Cannot write at speed 16x.
>
> I dont understand why it is like this. DMA, 32-bit is on. Its using a
> Promise TX2 UDMA/133 card. Should be enough. LG GSA-4120B is the burner
> model.
alan wrote:
> Are you using an ide cable rated for 133?
Um. Sounds like a red herring to me. The drive only supports 33 MB/s.
The manual, which can be found at
http://us.lgservice.com/jsp/common/download.jsp?DOC_ID=KROWM000058431&FILE_NAME=KROWM000058431.pdf&ORIGINAL_NAME_b1_a1=GSA-4120B-ENG-55C.pdf&FILE_GUBUN=I
(phew) says (page 10):
Performance:
Data transfer rate
*Sustained CD-ROM : 6000 Kbytes/s (40X max)
DVD-ROM : 22160 Kbytes/s (16X max)
*Burst(ATAPI) 16.6 Mbytes/s (PIO Mode 4), (MULTI-DMA Mode 2)
33.3 Mbytes/s (Ultra-DMA Mode 2)
So 33 MB/s is all you're going to get out of the drive interface. And
this is enough for 16x DVD.
Hope this helps,
James.
--
E-mail address: james | Space Opera: General term for a subgenre of adventure
@westexe.demon.co.uk | SF in which the men are heroic, the women beautiful,
| the monsters monstrous, and the spaceships make
| whooshing sounds in hard vacuum. -- Eric Raymond
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