DVD-R Media.

[PikachuX]

I personally use TDKs. These work 100% of the time for me. They are although very expensive. 15 for $35... Expensive but since it works well, I'll continue using them. Riteks are nice and pretty reliable. My cousin had that same problem with his Riteks once and he found it was due to moisture in his room. Dunno if this is the same problem.