Some customers are disappointed with the results because over time celluloid film deteriorates and nothing can be done to save the images. The cellulose nitrate, cellulose diacetate and tri-acetate within the film are all unstable mediums, and can deteriorate much faster than many photographs or other visual presentations. Cellulose nitrate releases nitric acid which adds to the decomposition. In the final stages the film turns into a rust-like powder giving off a strong odour of vinegar. If the films are stored in damp conditions they can become unwatchable in in the space of a few years, so act now to have your old films digitised by ScanCorner and save these memories to DVD.