Function
The Sony PSP memory card is designed to be used as a memory expansion card for the PSP gaming device. It can hold a variety of data files; most commonly, it is used to hold MP3 music files and digital video files, which are uploaded onto the memory card by the user by connecting the PSP USB cable to the computer and to the PSP system. Files can than be moved by locating the file on the computer, selecting it and dragging it into the PSP folder, which should appear on the desktop when connected. The PSP has wireless capabilities which allow it to access WiFi networks, making it possible to download files directly to the PSP for storage on the memory card.
Size
As of June 2009, Sony currently offers a 2 GB and 4 GB version of the PSP Stick Pro Duo memory cards. The physical size of the cards are 20 x 31 x 1.6 mm, according to Sony Style's website.
Benefits
The PSP memory card allows users to add their own content to their PSP memory. They can watch movies and listen to music on their PSP by moving these files from their computer to their PSP memory card. Users who can access wireless internet can download files from the internet to their PSP memory card as well. Saved game files and game profiles can also be stored on PSP memory card.
Misconceptions
The Sony PSP memory card does not accept MPEG-4 video formats, a common format of video files; instead, the user will need first to convert the MPEG-4 format with a video converter. An example of a video file converter is ffmpegx for Macs that can convert files to PSP compatible formats.
Potential
As memory storage sizes continue to increase as the physical size of the storage container shrink, it is likely that PSP memory cards with larger memory capacities will be introduced in the future.
Warning
While it is possible to download illegally obtained video and audio files to the PSP memory card, it is not recommended, as this may violate laws in your country of residence. Also some file formats may not function properly on the PSP even if they successfully transfer to the PSP memory stick.
Pricing
Sony Stick Pro Duo memory cards can range in price from just under $25 US dollars upwards to over $100 US dollars depending on the retailer, memory capacity and memory stick features.