On Sat, 4 Nov 2000 14:53, Sridhar Dhanapalan wrote:
> On Sat, 4 Nov 2000 06:15, Aries wrote:
> > On Friday 03 November 2000 11:48, you wrote:
> > > On Wed, 1 Nov 2000 16:54, Aries wrote:
> > > > yes the drive I have is an 8x4x32 ZipCD. I don't use the programs you
> > > > refer to , I use X-CDRoast, For the first problem ,if you have buffer
> > > > underruns and sounds like it, is to up the FIFO Buffer. I installed
> > > > the two prgs. you refered to in Gcombust goto the file menu select
> > > > preferences and change the FIFO buffer to something like 8M default
> > > > is 4M, I had to do this with X-CDRoast so I could burn at 8 speed for
> > > > data, I can only do audio at 4, Gtoaster I did not see where to
> > > > change the FIFO buffer size sorry. Try this and let me know how it
> > > > works, Have you tried burning at a slower speed then your max?
> > > >
> > > > On Tuesday 31 October 2000 09:27, you wrote:
> > > > > Is this Iomega drive the ZipCD 8x4x32? I have had no problems
> > > > > burning using Nero 5 in Windows 2000, but in Linux using
> > > > > Gnome-Toaster and Gcombust I have had problems. These programmes
> > > > > are front-ends for cdrecord, and when I tell it to burn a CD it
> > > > > finishes earlier than expected but it says that the burn was
> > > > > successful. I first thought that this was because Linux burning is
> > > > > faster than Windows burning, but after trying to read the CDs I
> > > > > have received I/O errors when accessing certain directories (i.e.
> > > > > some of the files are there,some are not). I think this is due to
> > > > > buffer underruns. Can you tell me how to rectify this problem?
> > > > >
> > > > > Thanks.
> > >
> > > I have tried using X-CD-Roast, Gnome Toaster and Gcombust, receiving
> > > the same result with all of these programmes each time I do a dummy
> > > burn. I tried putting the value 8m (to indicate 8MB) for the FIFO
> > > buffer so that these programmes can pass it on to cdrecord. This did
> > > not seem to make a difference, though, and with about 45 seconds to go
> > > my HDD would start churning and my FIFO buffer would run down to 0. I
> > > have also tried slowing the burn speed to 6x (from 8x) and burning from
> > > a CD image, only to get the same result. Could the problem be with my
> > > configuration rather than the application settings? My drive has been
> > > set up automaticaly with Mandrake 7.2, but it didn't work propery when
> > > I had it set up in Mandrake 7.0 either.
> > >
> > > Just in case, here is some of the cdrecord output generated by Gcombust
> > > and X-CD-Roast.
> > >
> > > Cdrecord 1.9 (i586-mandrake-linux-gnu) Copyright (C) 1995-2000 J�rg
> > > Schilling TOC Type: 1 = CD-ROM
> > > scsidev: '0,0,0'
> > > scsibus: 0 target: 0 lun: 0
> > > Linux sg driver version: 2.1.39
> > > Using libscg version 'schily-0.1'
> > > atapi: 1
> > > Device type : Removable CD-ROM
> > > Version : 0
> > > Response Format: 1
> > > Vendor_info : 'IOMEGA '
> > > Identifikation : 'ZIPCD1024INT-A '
> > > Revision : ' 1.1'
> > > Device seems to be: Generic mmc CD-RW.
> > > Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
> > > Driver flags : SWABAUDIO
> > > Drive buf size : 1572864 = 1536 KB
> > > FIFO size : 8388608 = 8192 KB
> > > Track 01: data unknown length padsize: 30 KB
> > > Lout start: 0 MB (00:02/00) = 0 sectors
> > > Current Secsize: 2048
> > > ATIP info from disk:
> > > Indicated writing power: 4
> > > Is not unrestricted
> > > Is not erasable
> > > ATIP start of lead in: -11580 (97:27/45)
> > > ATIP start of lead out: 333226 (74:05/01)
> > > Disk type: Short strategy type (Phthalocyanine or similar)
> > > Manuf. index: 9
> > > Manufacturer: Kodak Japan Limited
> > > Starting to write CD/DVD at speed 8 in dummy mode for single session.
> > > /usr/bin/cdrecord: WARNING: Track size unknown. Data may not fit on
> > > disk. Track 01: 0 MB written. Sense Bytes: 70 00 06 6A 02 CD EA 13 00
> > > 00 00 00 29
> > > 00 00 00
> > > Sense Key: 0x6 Unit Attention, Segment 0
> > > Sense Code: 0x29 Qual 0x00 (power on, reset, or bus device reset
> > > occurred) Fru
> > > 0x0
> > > Sense flags: Blk 1778568682 (not valid)
> > > /usr/bin/cdrecord: Input/output error. write_g1: scsi sendcmd:
> > > retryable error status: 0x2 (CHECK CONDITION)
> > >
> > > write track data: error after 646942720 bytes
> > > Sense Bytes: 70 00 06 6A 02 CD EA 13 00 00 00 00 29 00 00 00 00 00
> > > Writing time: 548.470s
> > > WARNING: Some drives don't like fixation in dummy mode.
> > > /usr/bin/cdrecord: fifo had 10250 puts and 10191 gets.
> > > /usr/bin/cdrecord: fifo was 5 times empty and 8895 times full, min fill
> > > was 0%.
> >
> > How do you have your drive setup is it a slave to another cd-rom or your
> > HD. or is it a master on it's own ide interface ? still looking for other
> > possibilities. My drive is setup to be a slave to my Cd-Rom drive on my
> > secound interface. That's what Iomega recomended. I hear that if it's
> > hooked up as slave to your HD you will have problems.
>
> I have my main (largest and fastest) drive (the one I have Linux on and
> burn from) set as a primary master. I have a smaller and older (but
> reliable) drive that contains my Swap partition and a Windows 2000 NTFS
> partition (unusable by Linux) on as the secondary master. My CD-ROM is the
> secondary master, and the Iomega burner is secondary slave. This
> configuration was the recommendation of many Linux publications (including,
> I think, the CD-Recording HOWTO), as it puts the burner on a different IDE
> channel from the source media (either the CD-ROM drive or the main HDD). I
> was not using the computer during the burning process, and the CD-ROM drive
> was empty. I was burning as root (I haven't set it up to work as a user
> yet).
>
> It seems odd that I can burn with no problems from Nero 5 in Windows 2000
> and I can't burn from cdrecord. Any more ideas, please?
I decided to try once more to burn a CD using X-CD-Roast, Gnome Toaster and
Gcombust (all frontends for cdrecord). I noticed that everytime I tried to
burn my FIFO buffer would be 100% full until the last 45 seconds of the burn,
where it would quickly empty, accompanied by intense hard drive thrashing. I
figured that if I burned less data onto the CD I may pass. Before, I tried
burning the ISO of Mandrake 7.2 CD 1 (649MB) and 645MB of data (no ISO).
These tests worked fine in Nero 5 in Windows 2000, but I only got cdrecord
errors (the same error every time) in Linux. The most I have been able to
burn on a CD in Linux has been 643MB (raw data, not an ISO). I know that this
is darn close to a CDs full capacity, but it still means that I am unable to
burn things like the first Mandrake 7.2 ISO in Linux. Could this be a problem
with my hardware, or could it be that cdrecord is not good at burning close
to a CD's full capacity?
--
Sridhar Dhanapalan
"One World, One Web, One Programme." - Microsoft Promotional Ad.
"Ein Volk, Ein Reich, Ein Fuhrer." - Adolf Hitler
