I decided to pull out my Alien disc my Alien quad set last night. I remember having some issues with freezing here and there, so I looked at the back of the DVD, seeing lots of stuck stuck on and a few scratches. My efforts to get the stains off with just a cleaning glasses cloth failed, so I pulled out the deionised water I had sitting about and put that on the cloth.
...To cut a long story short, I've now managed to add more stains and scratches to the DVD. The DVD still works, but it freezes for a few seconds randomly - I counted around 5 freezes when I watched the film last night.
Any DVD Yoda about?