Despite the title this is another in the now infamous Classic Rock Productions series ( nothing at all to do with the UK magazine of the same name by the way). Because the company have not (or cannot) license the actual visual tracks they use short 10 second clips (which gets round the copyright issues) and intersperse the clips with commentary from various musos that is hardly insightful or really that interesting. I guarantee however much a fan of Purple you are you'll not watch this DVD more than once. Beware spending any money on these releases and avoid the Rainbow, Pink Floyd and Jethro Tull releases( among others) as well!!