Messages in this thread | | | From | "D. Hazelton" <> | Subject | Re: CD writing in future Linux (stirring up a hornets' nest) | Date | Mon, 27 Feb 2006 17:24:39 -0500 |
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On Monday 27 February 2006 17:30, Peter Gordon wrote: > On 2/27/06, D. Hazelton <dhazelton@enter.net> wrote: > > This value is also reported by the drive. I don't know about DVD drives, > > but for CD drives it is a multiplier. 1x == 256K/sec transfer off the > > disc [...] > > For CDs, 1x is actually 150 KByte/sec.
Well, I've been known to be wrong before, and this number was more based on the fact that I once measured a sustained transfer rate of 1M/sec on a 4x CDROM
> > I haven't had time to look into the DVD specification, but I'm guessing > > that the DVD speed is about 3x what the CDROM speed is. > > According to WikiPedia, the DVD speed rating is almost 9 times that of > CD speeds. I.e., 1x DVD is about 1.32 MByte/sec.
This was based on DVDx16 == CDx48 - I'm guessing someone is doing some monkey work if a DVD is 9x a CD and a 16x DVD can't hit that mystical 52x of my favorite CDRW drive in pure CD read mode.
> > Just to make sure that we're all on the same page. :) > ~~Peter
Thanks. Was just trying to dispel a few mis-statements and made some myself. I'm grateful for the update to my poor memory.
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