The number of tracks determine the total capacity that this drive can access.
NOTE: It is possible to read a disc created on a 40 track drive in an 80 track drive. ====AMSDOS and number of tracks ==== All the default formats are designed for 40 track disc capacity. DATA format is 178K per side. If you have an 80 track drive and you want to use it's capacity you need to use another CPC DOS that can use 80 tracks.
=== Rotational Speed ===