I don't see any mention of which version of Microstudio you are using. Maybe I missed it.
If you have upgraded, that could be the problem with the Sony not working, or maybe even the LiteOn.
If Microstudio has been upgraded, make sure your Windows upgrades are up to date. Go to the following link, and select CUSTOM upgrades. EXPRESS does not contain anything Microsoft doesn't deem necessary from their perspective. Make certain to get .NET FRAMEWORK. The new Microstudio requires it.
http://www.update.microsoft.com/wind....aspx?ln=en-us
If you haven't upgraded Microstudio, then perhaps you should, and then do the Windows upgrades. It might get you back in business.