Been to Curry's megastore at Fosse Shopping Park (Leicester) earlier and noticed they have a "massive stock clearance" and all DVD's and CD's will scan at 4.97 regardless of their sticker price.
Obviously store specific and while stocks last, but great for people with those £5 vouchers.
Plenty of stock when I dropped in.
(Doesn't include DVD Boxsets, although they have been reduced if you get them price-checked.)
Just a heads up - hope this helps someone.