Crappy Sony CD ROM (CDU4811)

Same experience with the SONY CDU4811 on a KIII-2 450 MHZ CPU. Where did
you find the firmware update?

Andr??



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Posted via CNET Help.com
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I'm having the same problem on a PIII 800. To get
consistent results, and 8x writing on my writer I
have to copy to disk first. I think that having
the reader and writer as master & slave
respectively on the same IDE controller might
have something to do with it.

Anyway, I could handle this ok, but the 48x
CDU4811 turns out to be pretty useless for
anything but playing audio CD's.

That is, even when burning a CD isn't involved, I
get read errors from the 4811, both when
installing from that drive, or copying its
contents to hard drive. I've got to use the CDR
drive for all that stuff.

I found a site that had a firmware update, but
the latest firmware update they have is PY09. The
version I've got is PY0A. Assuming the last two
digits are hex, I've got the later one already.

Any clues?

Stephen Walter

Sent via Deja.com
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...
try turning on DMA

This would the best way to do it CD to CD will more than likely cause
buffer underruns if
they are not copied to a temp file first "the Hard Drive"
33Mbs transfer for a average HD against 2.7 mbs or even 7.5 Mbs for a
cdrom
Which would you pick to read from .
Lets see this is a rough example 10 X burn x "1200kbs = 1.2meg a sec" =
12Mbs
Hmmm thats a short fall of 4.5meg = Coaster buffer underun
Simply put you are burning the data faster than it can be read
do your burns from the HD it rakes a little longer but you dont make
coasters
and determin you maximum speed its usually in you burner software in
prefs

Maybe a faster cpu an new motherboard
if you only have a 200 mhz or less you give no info on your config
I had 200MHZ myself noway could I get it to burn over 4X

anyway how this helps
Regards MC