I had this weird glitch happen to me in LBP today.
When the game was loading, the black background screen turned red. It finished loading but wouldn't go into the game, and my PS3 froze.
I restarted it, and went into the game. It got to my pod, but after a few seconds, everything was covered in a transparent red. A message came up saying "Problem loading data, clearing your pod may fix it. Press X to clear your pod now". So I press X, but the game/ps3 was frozen, so it did not reset my pod.
After restarting my ps3, I went into the game again. The loading screens were normal, and my pod seemed to be ok. So I went into a level, but then after a while, everything turned red and froze up again.
I left it alone for a while, and it seems to be fine now.
Any ideas about what happened? Can having too much crap in your pod cause the game to freeze up and crash your ps3?