While the standalone 1990-1999 DVD is now a legacy product, several modern alternatives exist for obtaining these files:
You can occasionally find original DVD collections on Amazon or used copies on eBay. Key Projects and Content (1990–1999) elektor magazine dvd 19901999 iso link
This decade of Elektor was marked by a mix of high-fidelity audio, precision test equipment, and early PC interfacing. Notable highlights include: Elektor - hFE Transistor Tester - September 1990 While the standalone 1990-1999 DVD is now a