How to Organize a ROM Collection with Proper Metadata and Artwork

A folder of inconsistently named ROM files works poorly with any modern frontend’s scraping and library features — this walks through getting a collection into a clean, correctly identified, artwork-complete state.

Step 1: verify file integrity before doing anything else

sha1sum *.zip > checksums.txt

Comparing checksums against a known-good reference database (No-Intro or Redump, depending on the system) before investing time organizing a collection confirms you’re not building metadata and artwork around a corrupted or incomplete dump.

Step 2: normalize filenames to a consistent standard

The No-Intro naming convention (for cartridge-based systems) and Redump convention (for disc-based systems) are the two most widely adopted standards — matching one of these consistently, rather than an ad hoc mix of naming styles, is what lets scraping tools reliably identify each file automatically.

Step 3: use a scraper to fetch metadata and artwork

Skyscraper (command line, cross-platform):
  Skyscraper -p snes -s screenscraper
  Skyscraper -p snes -g /output/gamelist.xml

Scrapers query online metadata databases (ScreenScraper, TheGamesDB, IGDB, among others) by matching your ROM’s checksum or filename, then download box art, screenshots, descriptions, and release dates automatically rather than requiring manual entry per game.

Step 4: organize by system in a predictable folder structure

roms/
  snes/
  genesis/
  gba/
  psx/

Most frontends (RetroArch’s playlists, EmulationStation, Batocera) expect or strongly prefer one folder per system — matching this convention from the start avoids fighting the frontend’s own auto-detection logic later.

Step 5: generate RetroArch playlists that reference verified ROMs

RetroArch → Import Content → Manual Scan →
  point at each system folder → assign the matching core

A playlist entry stores the ROM’s path and checksum together — regenerating playlists after any file reorganization keeps RetroArch’s library view from pointing at stale or moved file paths.

Step 6: handle multi-disc and multi-file games correctly

.m3u playlist file example:
Final Fantasy VII (Disc 1).chd
Final Fantasy VII (Disc 2).chd
Final Fantasy VII (Disc 3).chd

An .m3u file listing each disc in order lets a single library entry handle disc-swapping prompts within the emulator core itself, instead of the collection showing three separate, confusingly-named entries for what’s really one game.

Step 7: convert disc images to a space-efficient format where supported

chdman createcd -i game.cue -o game.chd

CHD (Compressed Hunks of Data) format, supported by many disc-based cores, typically shrinks disc images 40-60% versus raw .bin/.cue, without any quality loss, since the compression is lossless.

Step 8: back up the organized collection with its metadata intact

Once scraped, the gamelist/playlist metadata represents real time investment beyond just the ROM files themselves — including it in your regular backup routine, not just the ROMs, avoids having to re-scrape everything after a drive failure.

Why proper naming matters more than any individual tool

Every tool in this pipeline — scrapers, playlist generators, multi-disc handling — depends on being able to reliably identify what a given file actually is, which in practice means matching it against a known naming/checksum standard. A collection organized around consistent naming from the start scrapes and imports cleanly; one that isn’t requires far more manual per-file cleanup no matter which scraping tool you eventually point at it.