is the official command-line tool from the MAME project for creating and managing CHD files. While it requires a few steps, the process is well-documented and powerful.
For anyone with a sizable collection of classic video games, the situation is all too familiar. A single standard PlayStation 1 (PS1) game disc image in ISO or BIN format typically occupies of storage space. When a collection grows to, say, 50 titles, that one platform alone consumes nearly 35 GB of hard drive space——the equivalent of multiple modern "AAA" game installations. One active user on the RetroPie forums noted their full PS1 collection had ballooned to approximately 800 GB . Psx Highly Compressed Roms
To get started with PSX highly compressed ROMs, you'll need: is the official command-line tool from the MAME