Backup options

Backup Type 
Default - backup all drivers to a specified folder.
ZIP Archive - backup your drivers, and compress them to a .zip file.
Self-Extracting Archive - backup your drivers, and compress them to a self-extracting file.
Auto-Installer - backup your drivers and create an auto-installer that can run independently.

Split to volumes
Fill in the size of every split volume.

Compression
None - No compression.
Low - highest compression speed, however, the compression ratio is the smallest.
Normal - Standard ZIP compress ratio (recommended).
Maximum - largest compression ratio, however, the compression speed is the slowest.