Do you know the file format? If files are any of the standard formats, and your camera has a USB port, you should be able to copy the video files to your hard drive. From there, you can play them or burn them to a DVD to play on external DVD players.
To find players that will play your files, just search for Google for the file extension (avi, mov, wmv, etc.) to find the players that will play them. If you have Windows Media Player, Quicktime, Real Player, etc. they may be able to show them without even searching.
Good luck. 🙂