The PSP has been on the market for a few years now and is a great portable gaming device. You can download games for your PSP but sometimes you may find it difficult to search for games to download on your PSP.
Here are a few points to keep in mind when downloading games for PSP
The PSP firmware is like the operating system of the PSP. It controls all the software and hardware functions of the PSP. Each batch of PSP firmware is different. Only earlier firmware versions are able to play downloaded games for psp. These are psp firmware version 1.00 and 1.50.
To check your PSP firmware version, go to system settings menu and select it. Then select system information and select the option system software. It will tell you the firmware version for your PSP.
Playing movies and mp3 are fine, only downloaded games. There are some emulators or PSP hacks that can get past this limitation since all new PSP shipped nowadays have firmware 2.00 and above. However, it is not safe and may actually damage the firmware of your PSP.
There are many PSP software emulators on the internet that allows you to play old console games. Examples are nintendo, super nintendo, game boy advance and sega genesis.
There are some arguments about the legality of such emulators at present but unless you are distributing or selling such emulators, there should be nothing to worry about.
There are some games that are "homebrew". It means PSP games created by amateurs for fun or who wants to study how games are made on the PSP. These are pretty rudimentary and simple and unless you enjoy games such as pong or invaders, you might want to give it a miss.
PSP Game Download Sites
There are quite a number of psp game download sites on the internet. Some are legal and some are not. Be careful when loading games from such sites as you may be violating copyright laws.
There are a few that are legal psp game download sites. Most require a one time membership fee that allows you to download unlimited PSP games.
I highly recommend if you are interested in such sites to use these legal sites as they are safer and usually provide better support and download speeds. They have many download games for psp as well as movies, mp3 as well.