What will I receive when I purchase a download?
Video files are mp4 format and will play on all systems. Most operating systems will be able to play mp4 files out of the box, but if you need to download a media player we recommend the free VLC Media Player. Here is a useful article on mp4 files from about.com.
Larger products will be available for download in a compressed zip file, for which you will need to extract the video files. For more information about zip files, see this BBC article.
For eBooks, the minimum you will receive is a PDF file. Some of our ebooks are available in other formats and also include PGN files so you can view chess games in your favourite program.