Just to reply to the last few questions:
@horusfalcon:
This post was exclusively about KDE 2012.12, but I had seen similar behavior before. I did not get any message about not using DMA, but I really don't know if it is on or off. I tried to play with it after some googling the other day but did not get very far.
@wedgetail:
I just burned another DVD with almost identical results at 6x. Same scary messages, 1307 of 1351. Passed Mediacheck and works perfectly well. Here's my output, pretty comparable to yours.
DVD-R Sequential
Devices
-----------------------
ATAPI iHAS124 C LL0B (/dev/sr0, 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/R96P, SAO/R96R, RAW/R16, RAW/R96P, RAW/R96R, Restricted Overwrite, Layer Jump] [%7]
System
-----------------------
K3b Version: 2.0.2
KDE Version: 4.9.2
QT Version: 4.8.4
Kernel: 2.6.38.8-pclos3.bfs
Used versions
-----------------------
growisofs: 7.1
growisofs
-----------------------
Executing 'builtin_dd if=/dev/fd/0 of=/dev/sr0 obs=32k seek=0'
/dev/sr0: engaging DVD-R DAO upon user request...
/dev/sr0: reserving 691999 blocks
/dev/sr0: "Current Write Speed" is 6.1x1352KBps.
425984/1417213952 ( 0.0%) @0.0x, remaining 277:09 RBU 100.0% UBU 0.3%
425984/1417213952 ( 0.0%) @0.0x, remaining 443:27 RBU 100.0% UBU 100.0%
425984/1417213952 ( 0.0%) @0.0x, remaining 609:45 RBU 100.0% UBU 100.0%
425984/1417213952 ( 0.0%) @0.0x, remaining 831:28 RBU 100.0% UBU 100.0%
....
....
....
1230667776/1417213952 (86.8%) @6.2x, remaining 0:24 RBU 100.0% UBU 99.4%
1259175936/1417213952 (88.8%) @6.2x, remaining 0:20 RBU 100.0% UBU 98.0%
1287684096/1417213952 (90.9%) @6.2x, remaining 0:16 RBU 100.0% UBU 99.2%
1315078144/1417213952 (92.8%) @5.9x, remaining 0:13 RBU 100.0% UBU 99.4%
1342603264/1417213952 (94.7%) @6.0x, remaining 0:09 RBU 100.0% UBU 97.9%
1371111424/1417213952 (96.7%) @6.2x, remaining 0:05 RBU 100.0% UBU 99.4%
growisofs command:
-----------------------
/usr/bin/growisofs -Z /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:691999 -use-the-force-luke=dao:691999 -dvd-compat -speed=6 -use-the-force-luke=bufsize:32m
ebvt
