Sian,

ABC was invented by and for folk musicians to be an economical way of exchanging basic tune info without using up megabytes of disk space.

I have an ABC file of 360+ Morris Dance tunes that takes up just 100Kb (Yes - Kb not Mb), which represents about 18 hours of music with all dances played in full. 100K might get you 1 or 2 GIFs of the dots, or a few seconds of MP3.

5000 tunes on a single floppy - that's the sort of annoyance I can put up with.

Wassail! V