Use these queries:
(Compressed ISO) files. While ISOs are perfect copies, they are bulky; CSOs save space but often cause "stuttering" during gameplay because the PSP hardware struggles to decompress them in real-time. The adoption of the CHD format psp chd internet archive
CHD files are typically 20–50% smaller than standard .iso files, making them ideal for large collections on the Internet Archive . Use these queries: (Compressed ISO) files