TV system can be a problem of playing when you create (use) a disc in a system and the player doesn't support it.
PAL and NTSC are the TV systems used in different regions of the world.
Recent players can play both systems but unfortunately some older players suppot only the TV system what is used in the region where it was sold.
You need to find what TV system your player support and create the DVD in that system (PAL or NTSC)
PS
How you capture/transfer the video from the camera? What type of camera is ? miniDV, miniDVD, memory card, hard disc? Why are you creating the wmv file in the first place?