Hi, You can find VLC media player site info in this forum, just type dvd players into search, I know theres a sticky on this subject posted by Lord of the Rings he's a senior on this forum and knows heaps. As for copying store dvds go to afterdawn.com and theres heaps of free software, I have dvd decrypter and dvd shrink and they work together well, but i havn't tried converting them into small files to share on lw as yet. I did download dvd santa and it converts all sorts of files, theres a free demo and its a full version for unlimited time, the only thing is it has demo across the top of the screen for about 2 mins, and then it goes, but its not to expensive for the proper version.Oh and VLC is free as well.
Hope this helps, best of luck