Morrison's are selling pre-owned but fully refurbished CD's for only £2 and are guaranteed to work according to the sticker. I have purchased a few and they are all unscratched, with perfect boxes and covers, no cracks or rips.
I would assume the selection will vary from store to store but from what I've seen so far, there are the following:
Beyonce - I Am ... Sasha Fierce
Basement Jaxx - The Singles
Dire Straits - On Every Street
Hard-Fi - Stars Of CCTV
Avril Lavigne - Let Go
Justin Timberlake - Justified
Justin Timberlake - Futuresex/Lovesounds
Pink - Funhouse
Mariah Carey - Music Box
The Prodigy - Music For The Jilted Generation
Enrique Iglesias - Escape
Oasis - What's The Story Morning Glory
Various "Now" albums.
I cannot find these albums cheaper on Ebay (Once you include the P&P) so and these are pretty much readily available at your local Morrisons. Check them out next time you're doing the weekly shop, there might be an old album you always wanted but never bought.