The actual issue was it took 30+ minutes to delete (instead of normal seconds). The corruption occurred when people reset their PS3s. It happened to me, it seemed to have freezed but instead of resetting I googled
I left it for 45 minutes, no corruption.
As someone said on a forum at the time, a game that managed to annoy an hour after playing it.
In a strange and mystical land, a young boy discovers a mysterious creature with which he forms a deep, unbreakable bond. The unlikely pair must rely on each other to journey through towering, treacherous ruins filled with unknown dangers. Experience the journey of a lifetime with this touching, emotional story of friendship and trust in The Last Guardian for PlayStation 4.
Through advanced lighting and particle effects, detailed environments, and lifelike character animation, The Last Guardian transports players to a breathtaking world filled with crumbling ruins and mysterious secrets to discover.