The Sony PCM Series recorders, introduced in the late 1970s, marked a major step forward in digital audio recording. Beginning with the PCM-1 and PCM-F1, which used video tape as a storage medium, and continuing through professional DAT and DASH machines such as the PCM-7010, PCM-7030, and PCM-3348, the series established Sony as a leader in digital recording technology. These recorders delivered pristine audio quality, reliability, and precise timecode synchronisation, quickly becoming industry standards in music, film, and broadcast production. The Sony PCM Series played a pivotal role in the transition from analogue to digital recording and remains synonymous with the birth of the digital era in professional audio.