Saved game file created by Sharkport, a PlayStation 2 (PS2) hardware accessory used for transferring data to a PC; contains a PS2 saved game but in the Sharkport file format; used for sharing saved games with others via email and the Internet. The ".ps2" extension is also used by PCSX2 (PlayStation 2 emulator) memory card images. However, the Sharkport and PCSX2 ".ps2" formats are not compatible with each other. Therefore, if you receive a PS2 file, you may need to test it with both Sharkport and PCSX2. PCSX2 uses the .P2S extension for saves. Sharkport PS2 files can be converted to other PlayStation 2 save formats using PS2 Save Builder. However, you first need to change the ".ps2" extension to .MD, the extension used by previous versions of Sharkport.
System file created by Indexing Service, a component of Microsoft Windows used to automatically generate a searchable file system index; contains data that helps the Windows search perform file information searches more quickly. PS2 files, along with other search index files, are often created in the C:\System Volume Information\catalog.wci directory.