PowerDVD - PDVDSERV.EXE
Pdvdserv.exe installs with PowerDVD and PowerDVDSE by Cyberlink. This DVD player offers a high quality viewing and listening experience while viewing DVDs on your computer. It includes Dolby Virtual Speaker, DTS Digital Sound, Dolby ProLogic II, and SRS TruSurround XT. This file doesn[t necessarily need to run on startup or need to be running all the time. If you prefer, you can start it manually when you want to play a DVD. Just go to Start > Programs or use the desktop icon.
More info and a handy FAQ can be found at http://www.gocyberlink.com/english/cs/support/index_tech.jsp.
Safe
Cyberlink Software