You certainly do not want to be facing lawsuits for downloading illegal mp3 files. I have found that the quality of the mp3 files from these free PSP music download sites is very poor. Often times, you can't even make out who is singing or the background has a lot of noise.

If you want to download PSP music that is legal and high quality, I highly recommend purchasing a subscription to a paid PSP music download site. These sites offer legal mp3 and the quality of the mp3 is much better.

The cost is pretty affordable, usually less than $50.00 and it is a one-time charge. After which, you can download as many mp3 as you want. They also provide other files such as PSP movies, TV shows and sometimes even games.

Another advantage of a paid download site is that the files are certified free of spyware and viruses. Many free PSP music download sites often have mp3 or files that are infected with spyware and viruses. Once you run or play these files, it can compromise your personal data stored on your computer.

The download speed are also faster and they provide technical assistance should you require one.

However, I would advise you if you are interested in purchasing a subscription to such download sites, to do your research first and find out which one is the best value for money.

One of the best ways is to visit music or PSP forums and ask other people's opinions and views about a particular PSP download site you are interested in. See what they say and you have a pretty good idea of what to expect when you do purchase. Another thing is to make sure there is a money back guarantee available. That way, you will get your money back if you are not satisfied. Most reputable PSP download sites will offer a money back guarantee.