Methods and apparatus for determining which of a plurality of physical blocks associated with a logical block is more recently associated with the logical block are disclosed. According to one aspect of the present invention, a method for resolving associations of a first physical block and a second physical block to a logical block associated with a non-volatile memory system includes obtaining a first identifier associated with the first physical block and obtaining a second identifier associated with the second physical block. The identifiers are compared to ascertain whether the first identifier indicates that the first physical block is more recently associated with the logical block. The method also includes completing an operation arranged to provide contents associated with the logical block to the first physical block when it is determined that the first identifier indicates that the first physical block is more newly associated with the logical block.