i have the handycam dvd305. you just finalize the disc in the camcorder and put it in your pc/dvd player. thats all i have ever had to do.
on my dvd305, there is a menu option right there on the screen. you hit that and there is a finalize option. just push on the finalize option, and it will tell you to wait- hold the camera still should have a little progress bar till it gets done. thats it. finalizing on my 305 might be different than your 105. mine is touchscreen. just mess with it till you find it, if all else fails get out the book. if you don't have a book, google.