Compression Level

The Compression level option defines the level of compression applied to the data being backed up. The default setting for this option is Normal.

The optimal data compression level depends on the type of data being backed up. For example, even maximum compression will not significantly reduce the archive size if it already contains fairly compressed files, such as .jpg, .pdf or .mp3. However, such formats as .doc or .xls could be significantly further compressed.

Select one of the following compression levels:

• None. The data will be copied “as is”, without any compression. The resulting backup size will be maximal.
• Normal. This compression level is recommended in most cases.
• High. The resulting backup size will typically be less than for the Normal level.
• Maximum. This is the highest degree of the data compression. But the time for performing backup task will be maximal. You may want to select maximum compression when backing up to removable media to reduce the number of required volumes.