The company produced both musical and non-musical recordings (for example Quran & radio dramas). As a state owned company it has access to recordings made by Egyptian Radio. Sono Cairo also took over the catalogues of other nationalised record companies, most notably Misrphon, and it was the all-dominant record company in Egypt until the late 1970s.
In 1977 the company was transformed into an Egyptian joint stock company (Ministerial Decree 139/1977) under the Egyptian Radio and Television Union. The name was changed to صوت القاهرة للصوتيات والمرئيات [Ṣawt al-Qāhira li-l-ṣawtiyyāt wa-l-marʿiyyāt (self-identified in Latin characters as Sono Cairo Audio & Video Co.)].
In the 1960s SonoCairo had two record pressing plants (which also pressed records for other companies).
1. In Cairo: the old Misrphon Factory (مصنع الشرق للاسطوانات - مصرفون) which was nationalised in 1962
2. In Alexandria: opened in 1963
These are usually credited as صنعت في مصانع صوت القاهرة (i.e. manufactured in the factories of Sawt al-Qahira).