15.rar — Kg

a) previous RAR version failed to unpack folder records in archives created by RAR 1.50. RAR 7.01 Update: New Features & Fixes - Scribd

: Early versions of the RAR format used a specific method to store directory structures that differed from the file-based approach used in newer versions. KG 15.rar

The phrase refers to a technical behavior in older versions of the RAR (WinRAR) compression utility. a) previous RAR version failed to unpack folder