You know the once ubiquitous floppy disk has passed into history when your better-half, faced with a mini CDR for the first time, carefully inserts it into what is clearly the only suitable size slot in her PC.  By the time I arrived on the scene she had just managed to extract the disc from the said slot with the aid of Blu-Tack and perseverance, still perplexed and annoyed that the disc would not work.