Save the text document as compress.bat (make sure the extension is .bat , not .txt ).
Highly compressed PS1 ROMs represent a grassroots response to technical constraints and preservation desires. The methods—CHD, PBP, custom scripts—are clever and effective, but they come with meaningful costs: audio/video degradation, performance overhead, and legal risk. For the casual user, lossless CHD compression offers the best balance. For archival purposes, only uncompressed Redump images ensure fidelity. Ps1 Roms Highly Compressed