Aware: User 4GB Sony Memory Stick Pro Duo. Caution this item may be fake/ fraudulent. I purchased one from a user and had to post a claim towards him, he refunded my money back. Symptoms I have experienced: Unable to exceed at least 2.5 GB worth of space without problems such as corrupted data forming onto my PSP that I can not remove unless I format the entire card over and over again. Lost of data due to fake memory source. Inability to save PSP game files to memory for it is fake. I did not find out until after I had posted a good response. The one that I received did not support magic gate and is equivalent to the fake descriptions shown on these pages. http://www.dgrin.com/showthread.php?t=32249 http://third3ye.net/gallery/main.php?g2_itemId=6846 http://reviews.ebay.com/FAKE-Sony-Memory-Stick-Pro-Duo-MagicGate-Cards-Exposed_W0QQugidZ10000000001236041?ssPageName=BUYGD:CAT:-1:LISTINGS:2 http://forums.infinite-interactive.com/archive/index.php?t-312.html P.S. My PSP supports...