Don't download rubbish onto your Zune! You need to ensure that the music you download onto your PC and MP3 player, such as a Zune, doesn't have any viruses or spyware that will affect your system. It'll really annoy you and potentially make you open to identity theft or worse.

Here are some of the problems you might face if you're not careful.

1. Spyware is almost always included in free MP3 software. It gathers information from you PC and can record what you type.

2. Adware is also prevalent in these software programs. This means your PC is open to unwanted pop-ups and other intrusive advertising.

3. A lot of these programs include pornography and can redirect you to a porn site.

4. Some of the free networks have spoof files. This is where the file is actually the same 10 seconds over and over for instance.

So when you are looking to download music and other media files onto your Zune you need to choose the best site. There are lots to choose from but only a few offer protection from spyware and adware, technical support specifically for your Zune, 24/7 access and a large quality library to choose from.

There are two main types of site that are safe.

There are the pay per download sites, such as Zune Marketplace and Amazon Unbox, that have a huge selection of music and videos. The songs are typically 99c each to download and you can be sure that they are of high quality.

Then there are the membership sites that offer unlimited downloads for your Zune for a one off payment. This payment means you can download as much as you want for life and typically cost between $30 and $50. If you know you are going to download a lot of files then these sites are for you.

Things have come a long way since the early days of Napster with it's illegal downloads and you can now be sure of a quality, legal service.

Make sure you look out for free trials or money-back guarantees and enjoy!