No. Unlike video files, "compressing" a game ISO usually refers to or removing "dummy data" (blank space used to fill a physical DVD). The textures, sounds, and gameplay remain identical to the original disc. 💻 Requirements for Playback

Some games compress amazingly (High Ratio). Others do not (Low Ratio).

If you are hunting for keep your expectations realistic. A perfect, full-quality ISO will be larger than 2GB.

highly compressed high quality ISO for the PS2 shooter is a popular goal for emulator enthusiasts, especially those using mobile devices or low-storage handhelds. Because the original game disc is roughly 4.7 GB, high-quality compression is essential to keep it playable without losing the cinematic audio and textures the game is known for. Top Compression Sizes for "Black"

If you need to save space on a PS2 emulator: