No! However if the disk has gouges so gross that there are plastic rags sticking up, they could scratch the laser lens.
not usually
You can watch DVDs on any computer that has a DVD player and software for playing DVDs.
No. All DVDs can get scratched. You're just going to have to keep them in a protective case and hope they never get scratched.
Best explanation would be that the discs are badly scratched and have been rendered unplayable, especially if the scratches are deep
No. DVD quality will be displayed whether the player is a DVD player or a Bluray player. DVDs won't be the same quality as a Bluray disc of course.
Sounds like the DVD is badly scratched
DVDs stop playing mid-way because they want to take a rest.
Because DVDs are not high definition and they are not formatted in high definition
It is protected with a plastic cover and will not be scratched like DVDs and because it is square in shape it is easier to transport.
The best way to store dvds are on a book shelf or some kind of shelf. There are also dvd towers made especially for dvds. Often people store them in binders. Although this method saves room, the dvds can get scratched.
Cd's are played in a CD player and dvds are played in a DVD player.
There are many different software downloads available for playing DVDs. Microsoft have a DVD player program but it is not free. VideoLAN make excellent free software for DVDs, and Cnet have a huge selection of free and paid downloads.