My DVD/CD drives are having issues

Hi guys, I'm confounded with an issue using my IDE devices. I have a Sony dvd/r and a samsung cd/r installed in my desktop. I recently installed a new MB with Intel e-8500 core duo processor. The MB is ECS g43-tm v 1.0a. Ever since I installed the new mb my dvd is only identified even though they are both connected using an IDE cable with two jacks. It doesn't read the Samsung cd drive. I tried setting my CMOS and it will not recognize it. Now here's the weird part. I disconnected the Sony DVD and connected the Samsung…it saw it. When i disconnected the Samsung and connected the Sony…it saw that one two. When both are connected it only sees the Sony dvd/r for some reason. Also, whenever I play a dvd/cd in the recognized drive…I can't do anything else, i.e. surf the web, play WoW etc. With my processor power and 3g of RAM I should be able to burn a dvd while doing multiple other tasks no? I've updated drivers, noodled around in BIOS and I can't get the two to be seen at the same time, which also makes me wonder about the slowing down of my comp while anything is being read/written in the available drive. Any help would be so appreciated Thanks.

Anytime you change a motherboard you need to Clean Install your Operating System. Did you?

Welcome to WhatTheTech. There's a couple of things here Chubby. It sounds like you don't have the jumper settings on each drive set correctly. Forget cable select. Make one drive the master, make the other the slave. You should be fine after that with both drives being recognized. Now, the other issue, I need you to be more clear. You said you changed the motherboard. But, did you reload the operating system? Motherboards can't just be changed and expect things to work properly unless the Operating System has been reloaded so that the HAL and other drivers have been rebuilt. If the motherboards were identical, or nearly identical (same or very similar chipsets) then it could be done. But, I'm going to assume that this is a completely different motherboard. Its a surprise the system boots at all if the original operating system has not been reloaded. By reloaded, I mean at least a repair install. A repair install of Windows will rebuild the necessary HAL so that it works properly with the new motherboard. However, I would strongly advise backing up your data and reinstalling windows fresh in all instances where a motherboard upgrade takes place. There will be so much stuff left behind from the old board that you are bound to have problems somewhere and even after a repair install I have never seen a system perform as it should when upgrading the motherboard until it was a fresh install. So, please clarify…