Invented in 1956 as the first broadcast television format, Quadruplex VTRs were in service until the early 1980s. These machines are difficult to operate and maintain and there are very few companies offering this transfer service today. We currently have five Quad VTRs in-house and are always looking for more. Parts are becoming rare and I bet the tapes will last longer than the machines. If you have Quad tapes still waiting on the shelf today, I’d recommend transfer as soon as possible.