[Dvdrtools-users] Cannot write CD's >= 100 minutes

[MAL]

I created an iso of 5 .mpg files, with the following command:

mkisofs -R -J -V "Test videos" -o test.iso /var/tmp/200*.mpg

This produces:

-rw-r--r--    1 root     root     4391436288 Aug  1 17:25 test.iso

To burn this to a Datasafe 4.7GB 'general purpose' DVD-R, via my Pioneer
104 DVD Recorder, (same as the A04), I do:

dvdrecord -v -dao speed=2 dev=1,2,0 test.iso

This however produces the odd output below:
_______

dvdrtools - based on:
Cdrecord 1.11a15 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jörg
Schilling
TOC Type: 1 = CD-ROM
scsidev: '1,2,0'
scsibus: 1 target: 2 lun: 0
Linux sg driver version: 3.1.22
Using libscg version 'schily-0.5'
atapi: 1
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   : 
Vendor_info    : 'PIONEER '
Identifikation : 'DVD-RW  DVR-104 '
Revision       : '1.20'
Device seems to be: Generic mmc2 DVD.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags   : SWABAUDIO BURNFREE 
Supported modes: PACKET SAO
Drive buf size : 1638400 = 1600 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data  4188 MB        
Total size:     4809 MB (476:30.08) = 2144256 sectors
Lout start:     4809 MB (476:32/06) = 2144256 sectors
Current Secsize: 2048
Trying to clear drive status.
dvdrecord: Drive needs to reload the media to return to proper status.
  ATIP start of lead in:  -150 (00:00/00)
Disk type:    unknown
Manuf. index: -1
Manufacturer: unknown (not in table)
dvdrecord: Data will not fit on any disk.
dvdrecord: Cannot write CD's >= 100 minutes.
_______

I have tried passing the -overburn flag to dvdrecord, but it makes no
difference, what am I doing wrong? :)

Regards,

MAL