Digitalization of obsolete analog formats makes it possible that historically important material recorded on them can be again presented to contemporary listeners. During the history of recorded sound, there were several sound recording formats of which the phonograph record was one of the most common. The phonograph record has been used during almost the whole era of sound recording and reproduction. It has been produced of different materials and had various physical dimensions. Also, the nature of the recording varied. Learning about these details makes it possible to choose the digitalization strategy on optimal, the most rational way. Through several examples of digitalization and sound restoration of a particular 78rpm phonograph record, we demonstrate influence of various factors on the final result-restored audio recording.