If you have a large collection of existing BIN/CUE files, you can use tools like chdman (part of the MAME toolset) to convert them yourself for free, ensuring you have the exact versions you want. How to Use CHD PSX ROMs Using these files is straightforward.

Here is a quick step-by-step guide to doing it automatically:

Over time, the format was adopted by other emulators, including those for the PlayStation, Sega CD, and Dreamcast. Today, it is widely considered the "gold standard" for disc-based retro game preservation.

Double-click cue_to_chd.bat . A command prompt window will open, automatically processing every game in the folder.

The emulation community maintains and No-Intro databases for verified, error-free game disc images. While these are typically distributed as BIN/CUE files, you can download the verified sets and convert them to CHD using chdman. The 1G1R ("One Game One ROM") sets are particularly popular among collectors, offering a single version of each game without duplicates.

Once completed, you can safely delete the old BIN and CUE files. Multi-Disc Games and CHD: Handling M3U Playlists

If you still want to pursue downloads, these are the most reputable names in the emulation scene: