In 1932, RCA began using Victrolac in a home recording system. DDR-FS was the first television broadcaster in Germany to introduce the Betacam magnetic recording system. They are also linked to a recording system and downlink system. Another new feature was the sound technicians' use of a six-channel audio recording system. That year, Ikegami introduced Editcam (the first tapeless video recording system). The room's video recording system was running and recorded the event. This handycam features a crash-proof recording system. Non-linear editing is not inherent to every hard-disk recording system, however. It was recorded live on a two-track Sony digital recording system. The BVU format had an improved colour recording system and lower noise levels. In 1965 a recording system was installed in the Chamber. A failed digital tape recording system was the Digital Compact Cassette (DCC). It was used in the UK's National Insurance Recording System (NIRS/2).