I have two combo units, a Panasonic and an LG. I have copied VHS tapes to DVD using both of these units. I have finalized the DVD’s. The resulting DVD will play in all of my DVD players, Sony, Toshiba and others. They will not play in my computer. I have a Dell, P4, 3 ghz, great video card, two gigs of RAM, WIN XP Media Center. Using Windows Explorer, I can see there is one folder, Video_TS containing files on the DVD. They are .bup, .ifo and .vob. There is no Audio_TS folder. Everything works when playing these in a set top DVD player. Nothing works when playing in my computer. The files are not associated to any program. I have no problem playing commercial DVD’s, CD and anything else. I have several programs on my computer for playing different movies, etc. I think I’m missing something to make the association. I tried these DVD’s in my computer, my laptop, my wife’s laptop and finally in my wife’s desktop. It works in her aging HP desktop, but not in any of the others.