Unreadable disc error
I bought a used copy of Dragon Age Inquisition for my Xbox 360 Slim, and also had to buy a 250Gb hard drive to install it. During the install process it kept asking me to put in the play disc and installation disc over and over but eventually managed to get it installed. I created a character, played a few hours then got bored and decided to reroll. During the character creation process I kept getting unreadable disc errors and after about 5 tries I managed to start a new character. After this the game became riddled with unreadable disk errors. I order to have any attempt at playing I have had to save every couple of minutes, and even then the error could occur at any point. I could reload several times and I would get the error repeatedly and unexpectedly. Now it is at the stage where I can't even play the game because it keeps coming up with this error.
I have cleaned the disc, bought and used a disc lens cleaner, and even bought another (new) copy of the game and I still get the error. This doesn't happen with any of my other games, including Dragon Age 2.
This is really frustrating, not least because I have spent more money trying to fix this, but also because I have a worthless game essentially. I was only a few hours in but I was really loving this game. I have searched for answers but found nothing. I have even reinstalled the game but still no luck. I have seen many other forums where people are having the same issue.
What is going on and what is being done about it???