Sorry I should have pointed out im brand new at this! Not sure what pocket writing software is, and the bit about the mainboard driver being unable to forward the command.
The reason I think the drives ok is because it does work at times, a lot more often in sonic, but somtimes with the errors I posted. In Nero it works very rarely with bad sector messages when verifying written content, so it works 1 time then it wont work again, where as it always worked before.

From Nero CD DVD speed i pulled:
Nero CD-DVD Speed: Disc Info
Basic Information
Disc Type: : DVD-R
Book Type : DVD-R
Manufacturer: : unknown
MID : SONY16D1
Write speeds: : 2 X - 4 X - 6 X - 8 X
Blank Capacity : 4.38 GB
: 4488 MB
: 4706076672 bytes
Extended Information
Layers : 1
Usage : General
Copyright protection : n/a
Recorder information
Disc Status : Empty
Raw Data
Pre-recorded Information in Lead-in (0Eh)
0000 - 01 40 C1 FD 9E D8 52 00 02 84 0E 10 87 88 80 00 - .@....R.........
0010 - 03 53 4F 4E 59 31 36 00 04 44 31 00 00 00 00 00 - .SONY16..D1.....
0020 - 05 88 80 00 00 00 01 00 E0 D4 05 00 18 EE 90 7C - ...............|
0030 - 78 FB 90 7C FF FF FF FF 71 FB 90 7C 18 6A DD 77 - x..|....q..|.j.w
0040 - 51 6A DD 77 00 00 15 00 02 00 00 80 30 00 00 00 - Qj.w........0...
0050 - 18 00 00 00 30 00 00 00 18 D5 05 00 40 00 01 00 - ....0.......@...
0060 - 0B 00 00 00 20 D4 05 00 4E 00 4E 00 98 D5 05 00 - ........N.N.....

As far as i know there arent any programs running simultaniously when im burning, unless background apps could have and effect???

Yea im aware of the double post now as I said im totally new and didnt realise you could get more specific oops!!