If there is a scratch in the DVD, or maybe dust in the DVD player. try taking it out and wiping the DVD with a dry tissue,don't wet it, or you can blow into the place where you put in the DVD. Always works for me :)
no they say in the previews only in theatre's
One of them does not contain previews of other shows or classic commercials
No, you need a Clearplay DVD player in order to use the service. Netflix doesn't show ads or previews or any other DVD surplus stuff, so it isn't necessary with streaming movies.
Yes the Torchwood DVD's do feature the "Next Time. . ." segment after each episode.
No you can do it , but the PS3 does not download while you are watching it. I was watching a DVD of a TV show I recorded on my media center PC and found that the Download does not continue while I am watching the DVD, but it also does not stop it from finishing the download after I finished the DVD. The download in the background feature works if you are just looking for other items to purchase at the Playstation Store.
What sort of problem?
Not anymore, but there once was. You can find this out by watching their DVD.
Scratches on the disc
There is no such thing as the DVD S2; however, using a DVD player allows you use to play all DVD discs, which are the most common form of watching films, shows and playing music.
A circle that you put in dvd players when playing video games/watching movies
by buying it on dvd and watching it or wait for it on tv
umm................ yes/no you because a movie isn't a tv show but its really the same thing :) i hope that helps you .