Re: crecord and speed
In article <20030405164009$3176@gated-at.bofh.it> you wrote:
>
> Not enough, I really need to slow down the reading speed.
^^^^^^^
writing :)
> On 5 Apr 2003, at 8:03, askronny wrote:
>
>> try:
>> nice --18 cdrecord -v dev=0,0,0 /root/image.iso
>>
>> so you maximize the priority of cdrecord
Use it and ...
>>
>> ----- Original Message -----
>> From: <chris1622@telia.com>
>> To: <debian-user@lists.debian.org>
>> Sent: Saturday, April 05, 2003 1:39 AM
>> Subject: crecord and speed
[...]
>> > I've just installed a Plextor PlexWriter (48/24/48) in my old pc with
>> > Debian Woody r0, but I can't write. This is how it goes:
>> >
>> > cdrecord -v dev=0,0,0 /root/image.iso
>> >
>> > Won't work since it gets a loss of streaming, I'm guessing this
>> > means that my old (200MHZ) pc can't handle the 24x speed that
>> > cdrecord chooses. So I tried
>> >
>> > cdrecord -v speed=2 dev=0,0,0 /root/image.iso
>> >
>> > But it wont get the speed command, cause cdrecord still wanna
>> > write with 24x speed.
>> >
>> > What am I missing?
Current cdrecordes don't have fine tuning of low speed (1x, 2x, ...)
According to:
http://www.plextor.be/english/products/pxw482448a.html
http://www.plextor.be/english/pdf/PlextorVariRec.pdf
http://www.plextor.be/english/pdf/PlextorCAV.pdf
your CDR should do at least 4x, 8x, 16x (and in range from 20X upto 48X
covered in 1X steps).
Try then 4x or 8x. On my P200 I have PXWR 8/2/20 and I don't have any
problems at 8x. I think that 24X (3600KB/s) is doable even on P200 (on light
machine load) but it depend on your HDD speed - my HDD IBM-DTTA-350840 in
hdparm test has >8MB/s.
You should connect hdd and cdr to different IDE channels and turn
on DMA for HDD and CDR. I use for disk (only, because my cdr is on scsi:)
hdparm -c1 -m16 -p4 -u1 -X34 -d1 /dev/hdb
Use burn-proof technology with cdrecord option driveropts=burnfree :)
Mirek
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