Optimize and convert your RAR to smaller RAR archives! Auto switch PPMD/DELTA/AUDIO/EXE/RGB/RAR4/RAR5/standard during creation RAR-archives. Full compatible with original RAR format. High compression ratio – usually better than WinRAR original. Batch processing of archives (drag-n-drop). Fast and Ultra modes for repacking! Reduce the size of your old and new archives in one click! Save space on your computer or cloud storage, and don’t overpay for storing your files! Support for recovery record.