[NBLUG/talk] Speeding up CDR burns

Troy Arnold troy at zenux.net
Tue Feb 1 12:24:41 PST 2005


On Tue, Feb 01, 2005 at 11:57:47AM -0800, Robert Hayes wrote:
> Greetings, all.
> 
> I'm wondering what I can do to increase the speed of my cd burns.
> 
> The drive is a Plextor rated to burn CDRs at 24X. 
> The best reliable burn speed I've gotten is 10X. 
> At 12X the buffer is prone to underrun if anything else is happening on the 
> box.
> 
> The box is a 2.2GHz with 512MB ram. I'm running Debian 3.0. The drive is a 
> 30GB 7200 rpm and I've optimized the throughput with hdparm.
> 
> My cdrecord is Cdrecord-Clone 2.01.01a01
> The cdrdao is Cdrdao version 1.1.9
> 
> Usually I just run K3B to burn files. 
> The cdrecord buffer size is set to 128MB.
> The cdrdao block size is set to 128 blocks.

Is this a 2.4 kernel series or 2.6?
If 2.6 are you still using scsi emulation for your cd drive? (you
shouldn't be)


Some things to try:
run k3b as root
try running cdrecord from the command line.
See if Knoppix is any better at burning. 

Your box should be able to burn at the full speed of that drive even
while under reasonable load.

-troy




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