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line72
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Joined: 13 Jun 2002
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PostPosted: Tue Sep 03, 2002 2:11 pm    Post subject: Tips for problematic cdwriters Reply with quote

I have a 1.2 athlon with 512 megs of ram, and I for the life of me couldn't get my tdk velocd 24x10x40 to write a 24x. I has buffer underrun protection so my cd's wouldn't fail, but it would take over 15 minutes!! If you are having a problem like this here's an easy fix. Change the fifo to 32 megs. Some programs (cdbakeoven) will let you specify it. If not set the environment variable: export CDR_FIFOSIZE=32m

Woohoo, burning at 24x now!
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iancurtis
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PostPosted: Wed Oct 16, 2002 9:44 pm    Post subject: Reply with quote

I have a Lite-On 32x and when i use cdrecord it burns at 12x and i can't figure out how to get it to burn at 32x. Can you explain how this fix works?? I wanna know what i'm doing before i actually try it. thanks! p.s. i did try the speed= option....
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line72
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PostPosted: Thu Oct 17, 2002 7:16 pm    Post subject: Reply with quote

all this does is up the fifo size. My fifo kept getting too low b/c it was set on 2megs. Since I set it to 32 Megs for info is stored in the fifo and i'm always at 100% (always writing a full speed). If the fifo isn't at 100% then your burner could start writing at a lower speed. also check to make sure your media support your 32x burner

/Line72
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iancurtis
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PostPosted: Thu Oct 17, 2002 10:06 pm    Post subject: Reply with quote

yeah media does support 32x....i've check almost everything....i couldnt figure it out....i'm gonna go ahead and try this...I'll let you know if it worked.
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kermitjunior
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PostPosted: Tue Oct 22, 2002 8:46 pm    Post subject: Re: Tips for problematic cdwriters Reply with quote

Quote:
If you are having a problem like this here's an easy fix. Change the fifo to 32 megs. Some programs (cdbakeoven) will let you specify it. If not set the environment variable: export CDR_FIFOSIZE=32m


I have a TDK VeloCD 40/12/48

Do I just type in
Code:
export CD_FIFOSIZE=32M


at the command line? or is this a file somewhere?

Thanks
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line72
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PostPosted: Fri Oct 25, 2002 4:40 pm    Post subject: Reply with quote

yup, just do this at command line or put it in your .bashrc file

/Line72
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pjp
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PostPosted: Fri Dec 17, 2004 8:36 pm    Post subject: Reply with quote

I think many programs use cdrecord, so I thought I'd add an option for those that use it manually.

fs=32m (or, as suggested for stdin in the man page, fs=128m).

Example (Modify for your hardware):
Code:
cdrecord -eject -dummy -fs=128m -vvvv speed=8 dev=0,0,0 -data cd_image


Note: The -dummy option does a test burn. Remove to do a real burn.
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