InfraRecorder Write Image problem

[JXR]

I downloaded and checksummed ubuntustudio-12.04-dvd-i386.iso.

I want to install Ubuntu Studio.

I've used InfraRecorder before with good results but this time I'm having a problem.

After following instructions on
https://help.ubuntu.com/community/BurningIsoHowto (https://help.ubuntu.com/community/BurningIsoHowto)

and using Windows XP to burn the DVD with InfraRecorder


at minimum speed ~ 3.5x
Write method: Session-At-Once (SAO)

I (repeatedly) get an "Operation Failed" box with the following message



Warning: The DMA speed test has been skipped
Started to write disc in real write mode.
Started to write track 1.
Input/Output error
A write error occurred. Please see program log...
Please properly read the error message above.


The program log says:


> BURN-Free is ON.

> Starting new track at sector: 0
> 0x
> Track 01: writing 30 KB of pad data
> Track 01: Total bytes read/written: 1996795904/1996826624 (975013 sectors)
> Writing time: 171
> 844s
> Average write speed 8
> 4x
> Min drive buffer fill was 80
> Fixating
> Fixating time: 28
> 078s
> /cygdrive/c/Program Files/InfraRecorder/cdrtools/cdrecord: fifo had 60938 puts and 60938 gets
> /cygdrive/c/Program Files/InfraRecorder/cdrtools/cdrecord: fifo was 2 times empty and 4432 times full, min fill was 0
CCore ProcessEnded
Process exited with code: 0.
CCore::BurnImage
[0,1,0] PHILIPS DVD+-RW DVD8801 4D28
File = H:\Linux OS\Ubuntu 12.04 and Studio\ubuntustudio-12.04-dvd-i386.iso.
Eject = 1, Simulate = 0, BUP = 1, Pad tracks = 1, Close = 1, Overburn = 1, Swab = 0, Ignore size = 0, Immed = 0, Audio master = 1, Forcespeed = 0, VariRec (enabled) = 0, VariRec (value) = 0, Clone = 0.
Command line to run: "C:\Program Files\InfraRecorder\cdrtools\cdrecord.exe" -v dev=0,1,0 gracetime=5 -eject -sao driveropts=burnfree -pad -overburn speed=31 "/cygdrive/H/Linux OS/Ubuntu 12.04 and Studio/ubuntustudio-12.04-dvd-i386.iso"
> scsidev: '0,1,0'
> scsibus: 0 target: 1 lun: 0
> SCSI buffer size: 64512
> /cygdrive/c/Program Files/InfraRecorder/cdrtools/cdrecord: Warning: The DMA speed test has been skipped
> Cdrecord-ProDVD-ProBD-Clone 2
> 01
> 01a61 (i686-pc-cygwin) Copyright (C) 1995-2009 Jörg Schilling
> TOC Type: 1 = CD-ROM
> Using libscg version 'schily-0
> 9'
> Driveropts: 'burnfree'
> atapi: -1
> Device type : Removable CD-ROM
> Version : 0
> Response Format: 1
> Vendor_info : 'PHILIPS '
> Identifikation : 'DVD+-RW DVD8801 '
> Revision : '4D28'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM
> Current: DVD-R sequential recording
> Profile: DVD+R/DL
> Profile: DVD+R
> Profile: DVD+RW
> Profile: DVD-RW sequential recording
> Profile: DVD-RW restricted overwrite
> Profile: DVD-R sequential recording (current)
> Profile: DVD-ROM
> Profile: CD-RW
> Profile: CD-R
> Profile: CD-ROM
> Using generic SCSI-3/mmc-2 DVD-R/DVD-RW/DVD-RAM driver (mmc_dvd)
> Driver flags : NO-CD DVD MMC-3 SWABAUDIO BURNFREE
> Supported modes: PACKET SAO
> Drive buf size : 655360 = 640 KB
> FIFO size : 4194304 = 4096 KB
> Track 01: data 1904 MB padsize: 30 KB
> Total size: 1904 MB = 975013 sectors
> Current Secsize: 2048
> Blocks total: 2297888 Blocks current: 2297888 Blocks remaining: 1322875
> Reducing transfer size from 64512 to 32768 bytes
> Starting to write CD/DVD/BD at speed 16 in real SAO mode for single session
> Last chance to quit, starting real write in 5 seconds
> Operation starts.
> Waiting for reader process to fill input buffer ... input buffer ready.
> BURN-Free is ON.
> Starting new track at sector: 0
CCoreProcessEnded
Process exited with code: 254.

- I tried the same thing with "Simulation" checked and that ran fine but, of course, it didn't write anything to the disc.
- Interestingly, it seems that in both cases nothing was written to the DVD. This is because, even after getting the "Operation Failed" message, I can still run InfraRecorder on the DVD and it does not say the disc can't be written on.

Am I doing something wrong?