cd-writer problem with 2.6 / k3b - help

[meanguy21]

hey there... well, people said i dont need ide-scsi emulation with 2.6 , so i removed the module "rmmod ide-scsi" and there isn't any line in my grub.conf ide-scsi=/dev/hdd or something .

when i tried k3b. it works really fine with cd-rw .
but with cd-r , the buffer % goes down to 0% then i get error msg "probably buffer overrun occurred" something like that...

cdrecord -scanbus doesn't show which one is my driver "probably cuz i dont have the ide-scsi emulation enabled"

but i found out which drive it uses from the log in k3b. so here's the output

root@gentoo DNA # cdrecord -v speed=8 dev=/dev/ide/host1/bus0/target1/lun0/cd - eject -data dna.iso
Cdrecord 2.01a14 (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jörg Schilling
TOC Type: 1 = CD-ROM
scsidev: '/dev/ide/host1/bus0/target1/lun0/cd'
devname: '/dev/ide/host1/bus0/target1/lun0/cd'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.7'
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 1
Vendor_info : 'LG '
Identifikation : 'CD-RW CED-8080B '
Revision : '1.06'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC SWABAUDIO
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1024000 = 1000 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 623 MB
Total size: 715 MB (70:55.90) = 319193 sectors
Lout start: 716 MB (70:57/68) = 319193 sectors
Current Secsize: 2048
ATIP info from disk:
Indicated writing power: 6
Is not unrestricted
Is not erasable
Disk sub type: Medium Type C, low Beta category (C-) (6)
ATIP start of lead in: -11231 (97:32/19)
ATIP start of lead out: 359847 (79:59/72)
Disk type: Short strategy type (Phthalocyanine or similar)
Manuf. index: 27
Manufacturer: Prodisc Technology Inc.
Blocks total: 359847 Blocks current: 359847 Blocks remaining: 40654
Starting to write CD/DVD at speed 8 in real TAO mode for single session.
Last chance to quit, starting real write 0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
Performing OPC...
Starting new track at sector: 0
Track 01: 18 of 623 MB written (fifo 3%) [buf 0%] 49.8x.cdrecord: Succes s. write_g1: scsi sendcmd: no error
CDB: 2A 00 00 00 24 73 00 00 1F 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 24 00 00 00
Sense Key: 0x5 Illegal Request, Segment 0
Sense Code: 0x24 Qual 0x00 (invalid field in cdb) Fru 0x0
Sense flags: Blk 0 (not valid)
resid: 63488
cmd finished after 0.767s timeout 40s

write track data: error after 19109888 bytes
cdrecord: A write error occured.
cdrecord: Please properly read the error message above.
Writing time: 12.534s
Average write speed 339.9x.
Min drive buffer fill was 0%
Total of 3 possible drive buffer underruns predicted.
Fixating...
Fixating time: 33.155s
cdrecord: fifo had 365 puts and 302 gets.
cdrecord: fifo was 2 times empty and 4 times full, min fill was 0%.

any ideas why this happens?