1. A method of accessing, by a media controller, logical-to-physical address translation data for one or more sectors of a storage device, the sectors of the storage device organized into blocks and superblocks, the method comprising: storing, on the storage device, the logical-to-physical address translation data in N summary pages, wherein N is an integer corresponding to the number of superblocks of the storage device; initializing, by a buffer layer module of the media controller, a summary page cache in a buffer of the media controller, the summary page cache having space for M summary page entries, wherein M is an integer less than or equal to N; for an operation, by the media controller, accessing a summary page: searching the summary page cache for the summary page; if the summary page is stored in the summary page cache: retrieving, by the buffer layer module, the summary page from the summary page cache; otherwise, if the required summary page is not stored in the summary page cache: retrieving, by the buffer layer module, the summary page from the storage device; and storing the retrieved summary page to the summary page cache.