The correct answers are: The development of CD writers enabling home recording from old cassettes; Improvements in internet download software

The ability to transfer to CD music previously bought on cassette would reduce the need to replace the old format and buy more CDs. Developments in downloading music from the Internet have already resulted in major changes within the music retail industry.

The development of new music media superseding CDs is not a threat, because the shop will still be able to sell the new media. In effect, the shop will simply change from selling CDs to selling the new product. However, improvements in internet download software are a threat because they allow customers to 'buy' their music directly from the record producers without having to use record shops as intermediaries.