Thanks Furballi. However, I'm still on dma mode 1.
I uninstalled the 2nd ide controller (both Kanguru and Lite-On are on this channel as you guessed). Then I went into bios, and have it re-detect the hard drive- which there are none on these two channels. Then when windows rebooted, the Kanguru is still on dma mode 1 using location 0, and the Lite-On CDRW is now on dma mode 3 (instead of 4) using location 1.
I got both drives on CSEL, and the cable should determine the master/slave relationship.
Wondering if there is something in the bios.. I used a Shuttle motherboard. Still it would be nice to get it into the right dma mode (which should be 2). Lastly, I used a round UV cable that is of a medium length- probably didn't exceed 18". I'll look around the next time I get into the chassis.
Actually the problem is moot- as I was able to burn 16x on a Sony dvd-r disc (sony-08 media) in about 6-7 minutes. The 12x disc burned at 8-9 minutes. The 8x is burning at about 12-15 minutes.. which seems to scale well. I might be ok in any DMA mode. I had thought that the dma mode 1 won't supply data fast enough to the drive for 16x burning.