Hi,
if you know how to use system DLLs from LabVIEW then you may try to use MCI commands located in windows/system32/winmm.dll. These command allow you to control multimedia devices in your PC.
The example of how to play CD tracks is located at
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/mci_6lrg.asp
Also you can read there another info about MCI.
If I find time today I will send you an example.
Good luck.
Oleg Chutko.