I bought a 109bk and have had nothing but trouble. It burns maybe 25% of the time, sometimes it won't even start the burn seems like the drive can't be "locked", then when it does burn the buffer is all over the place, and then other times when it gets to that first speed jump from 6x to 8x it will hang there thus ruining the disc. I have tried every firmware, the drive is master and in ultra DMA 4 mode. Sometimes when I restart CPU it will burn first disc flawless and fast (buffer is still all over the place) but then won't burn anything after that. I made sure I have current IDE drivers. About to send it to Pioneer just wanted to see if anyone had a similar problem. Being that it works sometimes and rips okay Iâ€™m thinking its something I am doing. I am using g05â€™s and burning at 8x. TIA for any help.