SATA drives are incapable of most conflicts such as the Master/Slave issues in IDE setups.
SATA drives are simply plug and play.
You can safely install as many SATA drives as you have connections for.
You should see if there is a firmware update for your SATA CD/DVD/BD drive. Usually a few are made following drive production for disc compatibility. In fact, most older burners begin creating "coasters" (bad burns) solely because they no longer receive updates. What a waste, but that's how they sell new drives.