That was a quick update. PSN PKG D&E is now at v1.3, this latest version brings auto decryption/dumping of files, batch mode, and better error handling.
Automatically Decrypt DLC files, Dump EBOOT files to ISO format when Drag & Drop it.
Batch Mode So you can Drag & Drop PKG, ISO, EBOOT, EDAT/PGD files to Decrypt, Dump, Verify ISO, Generate PSOne KEYS.BIN files. ( See the NOTE & info about How to use Batch Mode )
Show Warning and Abort the Operation when there is no free space available before extracting PKG file.