2 DVD burners. DVD-R single layer meida. Kubuntu 14.04 LTS fully updated.

Drive 1 : K3b - create new data disc - add several files to window - burn - immediately gives input/output error.
Drive 2 : Do the same thing, using the same disc, it works.

Drive 1 : K3b - select 'only create iso' - creates iso file without problem. Burn iso. works.

I'm climbing the walls on this one.

I tried several different brand of discs. If it was a bad cable or drive, then why does it burn the iso file? I've never had any problems with k3b before.

Any help would be appreciated.

Log:
Burned media
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DVD+R

Devices
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HP BD Writer bd340i RH26 (/dev/sr0, CD-R, CD-RW, CD-ROM, DVD-ROM, DVD-R, DVD-RW, DVD-R DL, BD-ROM, BD-R, BD-RE, DVD+R, DVD+RW, DVD+R DL) [DVD-ROM, DVD-R Sequential, DVD-R Dual Layer Sequential, DVD-R Dual Layer Jump, DVD-RAM, DVD-RW Restricted Overwrite, DVD-RW Sequential, DVD+RW, DVD+R, DVD+R Dual Layer, CD-ROM, CD-R, CD-RW, BD-ROM, BD-R Sequential (SRM), BD-R Random (RRM), BD-RE] [SAO, TAO, RAW, SAO/R96P, SAO/R96R, RAW/R16, RAW/R96P, RAW/R96R, Restricted Overwrite, Layer Jump, Random Recording, Sequential Recording, Sequential Recording + POW] [%7]
Optiarc DVD RW AD-7200S 1.0A (/dev/sr1, CD-R, CD-RW, CD-ROM, DVD-ROM, DVD-R, DVD-RW, DVD-R DL, DVD+R, DVD+RW, DVD+R DL) [DVD-ROM, DVD-R Sequential, DVD-R Dual Layer Sequential, DVD-R Dual Layer Jump, DVD-RAM, DVD-RW Restricted Overwrite, DVD-RW Sequential, DVD+RW, DVD+R, DVD+R Dual Layer, CD-ROM, CD-R, CD-RW] [SAO, TAO, RAW, SAO/R96R, RAW/R96R, Restricted Overwrite, Layer Jump] [%7]

K3b::IsoImager
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mkisofs print size result: 957358 (1960669184 bytes)

System
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K3b Version: 2.0.2
KDE Version: 4.13.3
QT Version: 4.8.6
Kernel: 3.13.0-113-generic

Used versions
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mkisofs: 1.1.11
growisofs: 7.1

growisofs
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READ SESSION INFO failed with SK=5h/INVALID FIELD IN CDB]: Input/output error

growisofs command:
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/usr/bin/growisofs -C 16,0 -M /dev/sr0=/dev/fd/0 -use-the-force-luke=notray -use-the-force-luke=tty -use-the-force-luke=4gms -use-the-force-luke=tracksize:957358 -speed=16 -overburn -use-the-force-luke=bufsize:32m

mkisofs
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Rock Ridge signatures found
957358
I: -input-charset not specified, using utf-8 (detected in locale settings)
Rock Ridge signatures found