Installing CSDS over an existing version does not wipe out any of your databases. It simply "updates" the information that I have modified, and it does not touch any information that you have updated or added. Database records have a "user ID" field, which allows the update process to know who created the record. Hence, the update process only changes the records that have "Vic Ceder" in that field. Your data will not be affected.
IMPORTANT NOTE: Your music files located outside of the CSDS installation folder will also need to be copied to a backup before reformatting the disk or they will be lost as well!