The CD/DVD Settings page of the Global Preferences window (accessible from the Tools menu, Global Preferences menu item) contains options pertaining to writing to optical media.
Cache disc image before burning : This option increases the reliability of backup to CD media by creating a temporary file on the hard disc that is then written at once to disc. Caching, however, means that GBM will first copy the data to a temporary local drive and then onto the CD, which adds a few minutes to the total running time for each disc.
Caching is not supported on DVD or blu-ray
If GBM doesn't detect enough space to perform caching, data will be copied directly to the CD.
Finalize disc (No further writing to the disk is possible): Close the CD/DVD media so that further writing to it is not possible. This is done by not recording the next writable address in the last session's lead-in, so that in the next time the recorder attempts to write, it has no way of knowing where to begin writing. Only finalize CDs if you are sure that you will not be appending new backup versions to it.
Import previous sessions on disc: If the CD contains more than one session, the most recent session is automatically imported so that it could be updated with the new data.
Each time data is written to a CD/DVD disk a table of contents is written at the end of the session in order to make the disk readable. This procedure is called session closing; data can still be appended to the disk after a session is closed.
Genie Backup Manager will by default import previous sessions on the inserted disc before writing to it so as not to lose existing data.
Disabling this feature causes GBM to write a new table of contents that does not refer to previously written data on the disc, rendering that data hidden and inaccessible, but it will not free the space occupied by it.
If a file with the same name as the backup file already exists on the CD, GBM will rename the new file by appending a trailing number, that is incremented by one for each new version of the file that is added.
Rename archive if a file/folder with the same name exists: This option prevents accidental overwriting of previous backup jobs stored on the CD/DVD in case a file with a similar file name already exists on it.
Eject the last backup disk after finishing
When backup to optical media is performed, eject the last disk in the media set to alert user that backup is finished.