Preservation of digital installations, a modern form of art with singular and varying characteristics, presents multiple challenges. Digital installations consist of a material and an immaterial part, and the challenges that arise have to do with not only the technical, but also the semantic representation of a work of art. The traditional practices of preservation focus on the material preservation of a static cultural object, but are inefficient for digital artwork, which are described more as an experience, a procedure, a phenomenon. In the present research study more concerns on preservation, authenticity and participation of the artist on the preservation process are examined through the careful investigation of four cases, representative of the digital installation art, and three interviews of artists that are active in this field. The conclusions are drawn using a critical approach of the issues that arise, as far as the preservation practices employed by different fields are concerned.