RAR typically achieves 8% to 15% better compression than ZIP.
It can split massive folders into smaller, numbered parts (e.g., .part001.rar ), making them easier to transfer across multiple disks or limited email attachments.
RAR is often preferred over the more universal ZIP format due to its advanced features:
The current default version, which increased the maximum dictionary size to 1 GB and upgraded optional AES encryption from 128-bit to 256-bit. Core Technical Advantages
RAR can include a "recovery record," allowing users to repair archives that become corrupted during download or storage.