The program acts as an easy-to-use backup shell for WinRAR archiver thus providing higher compression and safety of your documents in comparison with ordinary ZIP backups. OCB supports three backup formats for different needs. Firstly, RAR format that introduces ‘recovery record’ technology allowing you to restore all files even from a physically damaged archive, for instance if your backup CD was scratched. Secondly, ZIP format to be used when ZIP compatibility is of great importance. And finally, EXE format that provides the highest level of compatibility because such archives don’t require any software at all to extract your documents.