For safety sake, download music only from sites you know and trust. This will ensure that the song doesn't have some sort of virus in it which can leave your computer a mess or your private data open to criminals. Stick to sites like Amazon or iTunes who scan the files they provide.
Don't download music illegally. Instead, purchase CDs and load them onto your computer. In this way, you support your favorite singers and musicians. This is a way for you to access the music and load them into your mp3 without breaking the law. This is the first step toward building your music library.
If you are worried about the legality of the site you are downloading from, the easiest way to tell is if they charge you for each song. If there are no charges associated with the music you are downloading, then the website is probably stealing music and you could end up breaking the law.
When you found a music file that you want to download, be sure to check the file size. Most music files are between two to five megabytes in size. If you see a file size under 250K, it is likely that it is a text file with malware. Do not download these.
Be careful with free peer-to-peer music download services. Many of these sites straddle the line of legality. What you may be thinking is ok is actually putting you in jeopardy of prosecution if the service is caught and they report on their users. Do your research before joining any peer-to-peer music download service.
Don't try to download music from a place where you can't trust where it's coming from. For instance, you shouldn't use pirating software to get your music. This is because you could end up downloading a virus or spyware. It's also against the law to do this, so only get downloads from trusted sources.
If your taste in music changes a lot, consider using a site that allows you to stream music, rather than download it. Streaming allows you to listen to a large variety of songs, but the music never resides on your computer. This can save you money and space on your hard drive, so it is sometimes the better option.
In order to make sure the music you want to download fits into your monthly budget, consider using a site that charges a subscription fee, rather than a fee for each download. You can budget the exact amount of money you want to spend on downloads each month and know that you won't go over that amount.
Pay attention to music formats. Music files come in many different formats. Some of these formats are specific to certain music players or music playing devices. Don't download music you can't use. What are you going to party music use to listen to the music you're downloading? Determine the type of file you will need.
Check out your music service's store on a weekly basis. There are normally all sorts of music download sales going on. Multiple albums could be cut down on price - some even to half off. This is an excellent way to fill out your library at a discounted cost.