i talked to that guy that did the 2 HD mod in his box that looks real nice, and he said to use ATA100 or above, it has been said this mod doesn't work/work well with ATA66/ATA33. The Cable I have is ATA100 running to the ATA66 M-F-M cable, so that might be an issue.
I was also thinking, could there possibly be anything I can do to tweak the Samsung Drive I have? To make it accept the DVD even though it doesnt like the other 2 drives on the cable?
If not I have a couple of options. The way I did my IDE switch is I only connected the cable going to the Seagate, but it looks like I might need to hack into my main ATA100 Cable, put that on the IN prongs on the DPDT and then the ATA66 wires to their respective prongs on the DPDT Switch, or test out the ATA100 compatability issue and purchase a 4 Device cable from Llamma.