Roxio - burn and copy (non-copyrighted), possible author basic BD content depending on features/plug-ins.
Power DVD - Play CD-Video, DVD-Video, BD Video
Media Player - Won't help you with BD movie playback
Don't bother Dell for your sake. Check for online manuals using help features in PowerDVD and Roxio or search their support sections for downloadable .pdfs. Rarely are the PC suppliers good resources for bundled software or the OS for that matter.
Good luck and learn to carriage return and paragraph.
