I just want to place my thanks to the thread-creator, what you wrote in this thread helped me get my DVD burning working with the 2.6.3-r1 kernel using KDE windowmanager and ofcourse Gentoo as the base system.
Thanks
Some info about my system.
AMD XP CPU at 2100Mhz (yes, mhz..)
Nforce 2-based mobo
SIL3112 SATA controller (amazingly got it to work with my raptor drive)
512MB DDR Dual Channel
NEC 1300A DVD Writer
Well the reason I tried this out was that before I upgraded to 2.6 kernel I could burn cds fine and it would fly. Now with 2.6 kernel the buffer stays way low and jumps around and burns at avg 10x even without atapi. This is ridiculous and Ive tried everything, even this guide. Everything still works but my system bogs down and it burns way slow.... anyone have any ideas ?
NOTE: I found that I had to use "dev=ATAPI:0,1,0" for my CDRecord options in K3b, not the suggested --device=ATAPI:0,1,0 (adjusting to the proper dev numbers of course).
Other than that, your guide worked great, and I didn't have to do any extra configuration to get DVD's to burn either (outside of having dvd+rw-tools installed)