I need to make sure the instructions are clear. Maybe outline the steps with bullet points or numbered lists for ease. Also, mention common pitfalls, like using the wrong tool leading to a corrupted file, or over-compressing causing instability.
But there's a potential issue here: the user mentioned "highly compressed high quality." In video compression, there's a trade-off between file size and quality. However, for a game like Attack on Titan, which is a ROM/ISO, the compression is lossless in the case of CSO, so the quality shouldn't degrade. Maybe the user is confused, thinking that it's a video file, but it's actually a game. So clarify that. attack on titan psp highly compressed high quality
Also, mention compatible emulators. PPSSPP is cross-platform, so that's a good one. Maybe include some tips on optimizing the emulator settings for the compressed file. Also, note legal aspects—using a compressed file you own a legitimate copy of is okay, but pirating isn't. I need to make sure the instructions are clear