Re: "cdrecord" fails consistently with scsi errors

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On Fri, 13 Feb 2004, Robert G. (Doc) Savage wrote:

> On Fri, 2004-02-13 at 05:30, Robert P. J. Day wrote:
> >   for the first time in a while, i wanted to burn a few CDs (FC2-test1,
> > no big surprise there).  i'm running FC1, and booting *without* the SCSI
> > emulation feature on my inspiron 8100 with built-in ATAPI CD-RW.
> [snip]
> > ATIP info from disk:
> >   Indicated writing power: 5
> [snip]
> > write track data: error after 149323776 bytes
> > cdrecord: A write error occured.
> > cdrecord: Please properly read the error message above.
> > Writing  time:  256.470s
> > Average write speed  16.8x.
> [snip]
> > the failure isn't always at the same place, and i've never had problems
> > with burning before.  any thoughts?  is it possible the burner is bad?
> > i can't believe all of these CDs were flawed somehow.
> 
> Robert,
> It appears your drive is trying to record at 16x to a CD-R rated at only
> 5x. Try adding speed=4 to your command line. Slow burns sometimes
> produce fewer coasters.

as another test, i tried another burn explicitly at speed=1:
------------------------------------------
...
Starting to write CD/DVD at speed 4 in real TAO mode for single session.
                                 ???  i typed "speed=1"
Last chance to quit, starting real write    0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
BURN-Free is OFF.
Performing OPC...
Starting new track at sector: 0
Track 01:   26 of  632 MB written (fifo 100%) [buf  94%]   4.0x.cdrecord: 
Input/output error. write_g1: scsi sendcmd: no error
CDB:  2A 00 00 00 34 6F 00 00 1F 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 03 00 00 00 00 0A 00 00 00 00 0C 00 00 00 00 00
Sense Key: 0x3 Medium Error, Segment 0
Sense Code: 0x0C Qual 0x00 (write error) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.076s timeout 40s
...

man, this is getting expensive in terms of coasters.  dang.

rday




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