Heaven for those who remember Betamax
22 October 2013 Last updated at 01:42 BST
Digital art - unlike traditional works such as paintings and statues - is constantly under threat of becoming obsolete. For example, how can you preserve forever art stored on a video format that was discontinued many years ago?
Click's Jen Copestake visits the ZKM Centre for Art and Media in Germany where old video equipment going back nearly 60 years is being brought back to life - a treasure trove for all those who know their Betamax from their Video 2000.