Opinion of Advocate General Pitruzzella delivered on 3 June 2021.#Sony Corporation and Sony Electronics, Inc v European Commission.#Appeal – Competition – Agreements, decisions and concerted practices – Optical disk drives – Decision finding an infringement of Article 101 TFEU and Article 53 of the Agreement on the European Economic Area of 2 May 1992 – Single and continuous infringement – Definition – Collusive agreements relating to procurement events concerning optical disk drives for notebook and desktop computers organised by two computer manufacturers.#Case C-697/19 P.#Toshiba Samsung Storage Technology Corp. and Toshiba Samsung Storage Technology Korea Corp. v European Commission.#Appeal – Competition – Agreements, decisions and concerted practices – Optical disk drives – Decision finding an infringement of Article 101 TFEU and of Article 53 of the Agreement on the European Economic Area of 2 May 1992 – Single and continuous infringement – Definition – Collusive agreements relating to procurement events concerning optical disk drives for notebook and desktop computers organised by two computer manufacturers.#Case C-700/19 P.#Quanta Storage, Inc. v European Commission.#Appeal – Competition – Agreements, decisions and concerted practices – Optical disk drives – Decision finding an infringement of Article 101 TFEU and of Article 53 of the Agreement on the European Economic Area of 2 May 1992 – Single and continuous infringement – Definition – Collusive agreements relating to procurement events concerning optical disk drives for notebook and desktop computers organised by two computer manufacturers.#Case C-699/19 P.#Sony Optiarc, Inc and Sony Optiarc America, Inc v European Commission.#Appeal – Competition – Agreements, decisions and concerted practices – Optical disk drives – Decision finding an infringement of Article 101 TFEU and Article 53 of the Agreement on the European Economic Area of 2 May 1992 – Single and continuous infringement – Definition – Collusive agreements relating to procurement events concerning optical disk drives for notebook and desktop computers organised by two computer manufacturers.#Case C-698/19 P.