I see here
that . . .
"The DC100 takes 3-inch Mini DVD-R/RW discs, and like most of its competitors, can fit about 20 minutes of best-quality video on one. If you choose to initialize a disc for playing in a standalone player, the camcorder writes standard VOB
files; if you initialize for future editability, it records in the VRO
format. Windows Media Player can play the latter if you rename the file with an MPG extension, however the aspect-ratio information gets lost--that info is encoded into a separate file--so 16:9 video will get squashed into 4:3. "
Your videos are recorded in the common DVD format called MP2.
They have the extention .MPG so if you copy the video files to your computer, and change the end of the filename from VOB, or VRO to an MPG then your software can recognize it as the MP2 format that it is.
There is a Windows XP program, called Windows Movie Maker, it can open your video files and provide you with most of the video editing tools.