[@Leslie] Hi Leslie. You have a choice of 3 different formats for backup files: normal folders, normal zip files (limited to about 2GB), or the BitSilo proprietary “Silo” format. After choosing any of these 3 formats, files can be stored within them with either full directory names, or as indexed directory names. The best option is the Silo format, since it can efficiently store an unlimited number of files. There is a separate free program, SiloExplorer, that can open any Silo file and extract files from it, regardless of what computer the Silo was created on.
You can switch between these formats at any time, for any backup set.
Please see the BitSilo FAQ for more details.
– MollieSoft