I called in at a couple of Tesco Stores on the way home today to check out the new DVD/CD points offer (500 points for 2 DVDs/CDs from a chart selection). Some good news and some not so good. There are cheaper CDs on offer with points (£1, £3, £3.50.£4 etc) but they tend to be at the bottom end of the charts and these are only stocked in the larger stores ( i.e. the busier stores where they are more likely to be picked up by people searching out the offer!)
I bought a small number in the price range above at an "Extra" but in the smaller store where the range was smaller the CD's were in the higher price range reflecting the fact that they are bigger sellers?
Hope that helps.