I have an archive that including the .pbf comes to 82GB, across 44 files. Integrity check reports user aborted during creation, which may well have been the case. I hace seen this elsewhere in the forum: - "Unfortunately we can't access a corrupted archive. It's worth a try to use the File Transfer Wizard, double click the .PBF file and see if it "digs" into the archive. 0x200BA tells me that creation of the archive was aborted during the backup, rendering it useless." Surely theremust be a way to interrogate the partial backup to recover at least some of the contents?