I have the original cassette tape and ordered this on the basis that someday cassettes will become a thing of the past! Sadly, although Amazon are "trying their best to secure stock", they probably will not be able to fulfil my order given that this is an AudioGo product and they have gone into administration!!
This applies to orders for the Navy Lark collected series 9 and the second part of the Ian Fleming James Bond collection. Although the product would have been good Amazon should be a little more diligent when reporting the problems in securing stock.