[Dustpuppy]

I got those on my LiteON 24x too...
and it is that it burns at different speeds..
at 8X it uses a constant speed but 16x and higher (i think it is at 16x) it starts to use z-clv (different speeds)
I think it starts at 12x and spinns up after awhile to 16 or 20x then the last part in 24x

I got rid of it when I updated the firmware.
I havn't noticed any rings on my 4040B. I use the A301 firmware.
What firmware du you use? maybe it will e solved in the newer firmware.
less noticable anyway.

If I'm correct then my LiteOn deasn't stop burning even when it spinns up...I'm not sure but the rings have more or less dissapered.

*I know that I can be confusing.....but I hope that it brings some light anyway*