Memory stick is a portable flash removable memory card format. Memory sticks have been introduced by Sony in 1998. Now a day’s a memory stick is used in all most all the portable electronic devices like cell phones, digital cameras and personal music players. These memory sticks are very small in size and can space data than normal memory card. Memory sticks are of many types memory stick pro, memory stick duo, memory stick micro and the memory stick pro-hg  Among all these the memory stick pro-hg is the latest memory stick which provides higher transfer speeds and specially made for high definition cameras. 

The application of memory sticks is in many fields like they are used for PC memory, memory for digital cameras for saving image files. Memory sticks are also used in cell phones for saving data, they supports all most all formats of media like text, audio and video files. Memory sticks can be found online as many sites provide low price memory sticks the two of the best brands in memory sticks are the SanDisk and Sony. 

Both Sony and SanDisk are almost equal in quality SanDisk are slightly cheaper when compared with Sony. Even Sony PlayStation Portable uses memory stick pro duo format this allows the gamer to save a lot of game files and other media files like music and videos. The internal memory of PSP is quite smaller when compared with the memory stick. So, to improve the PSP memory a memory stick is necessary.