??? over half of respondents (56 per cent) said they have a digital music collection, with 45 per cent valuing it at over ??100 and 10 per cent at over ??1,000.?????? A third of people own smartphone apps (34 per cent) with 20 per cent saying their collections are worth over ??100.???Wendy Moncur, a computer scientist who is doing research into digital legacies, said: ???This is an area that most