On its PlayStation blog on Monday, Sony announced it will no longer offer the 4GB Memory PSP Entertainment Pack that includes the new PSP-3000 portable gaming console and a 4GB PSP Memory Stick PRO Duo. The decision was reportedly made due to the significant interest in the Ratchet & Clank: Size Matters PSP Entertainment Pack in North America, spurring the company to re-prioritize its PSP shipments. Instead, Sony will offer the 4GB Memory Stick PRO Duo card as a stand-alone offering for about $45.

The Ratchet & Clank: Size Matters entertainment pack includes a 1GB Memory Stick PRO Duo memory card, National Treasure 2 movie on UMD and a voucher for a free download for the ecochrome game title from the online PLayStation Store, and is priced at nearly $200. Starting this December, the pack will be offered with a piano black PSP in addition to the current Mystic Silver system that comes in the bundle today.