CDs can be bought. Features Alongside monthly product tests, the magazine features regular DAW columns which focus on software for use with Microsoft and Apple computers respectively. There is also a monthly collection of "Techniques" articles which provide how-to advice on specific audio equipment and software. Each issue includes several feature articles with specific foci: "Classic Tracks": history and discussion of a popular 'classic' track or band often featuring interviews with the artists and collaborators "Inside Track": interviews and discussion in a 'making of' style with the artists behind selected tracks "Studio SOS": charting the members of the SOS team assisting in the makeover of an existing reader's studio, complete with the reader reaction "Mix Rescue": a reader's multitrack mix is reworked by the SOS team to improve the results In addition, the magazine features several 'regular' elements that provide further information and insight into music recording and technology. These include: "Q & A": a selection of readers' questions researched and answered by the editorial team "Why I Love...": a 'guest' column written by readers discussing issues in the music industry. Reviews Sound on Sound does not provide ratings for the products it reviews, however it does provide several boxes of information accompanying each product review in order to help readers make up their own minds about specific products. These include: Sound on Sound verdict box including a balance of pros and cons with a summary statement Alternatives which suggest products similar to the one being reviewed but highlighting their difference in price, features, quality etc. Key information about the product including cost, manufacturer's contact details and further information for purchase enquiries Special issues In 2005, Sound on Sound celebrated its 20th birthday by providing a series of 3 cover mounted DVD-roms with the magazine, one released in March, August and November. The DVD-roms featured extra content not available on the website or in the magazine including several featured articles, a selection of reader demo tracks, tutorials on various aspects of music recording, samples for readers to use in their own compositions, and additional resources. Foreign editions Brazilian – The Brazilian edition was launched in Brazil in 2010. It includes articles translated from the UK magazine. North America – In 2001 a North American edition was added and includes all of the articles from the UK edition as well as local distributor contact details and dollar prices, and US advertising.