User guide: Importing
Import Failure Help
- Already in library
- Already in library, but manually deleted or unreachable
- No valid system detected
- Must not be compressed
- Contains no data
- Missing referenced file
- Not plain text
- No permission to open
- Invalid cue sheet format
You drag any of the following types into the window and they will automatically import, with the exception of .bin files for some systems which cannot always be identified (.bin is ambiguous). In that case you use the Import Issue Resolver (bottom left corner of the Library window) to manually select the correct system.
For importing CD-based games, closely follow the CD and M3U guide as they require extra effort.
Single ROM files per zip may be imported -- but not for CD/Disc-based systems. Multiple files per zip cannot be imported.
| System | File Extensions |
|---|---|
| Atari 2600 | a26, bin |
| Atari 5200 | a52, bin |
| Atari 7800 | a78 |
| Atari Lynx | lnx |
| ColecoVision | col, rom |
| Famicom Disk System | fds |
| Game Boy / Game Boy Color | gb, gbc |
| Game Boy Advance | gba |
| Game Gear | gg |
| Intellivision | bin, int, intv, rom |
| NeoGeo Pocket | ngc, ngp, npc |
| Nintendo (NES) / Famicom | nes |
| Nintendo DS | nds |
| Nintendo 64 | n64, v64, z64 |
| Odyssey²/Videopac+ | bin |
| PC-FX | cue, ccd, m3u |
| SG-1000 | sg |
| Sega 32X | bin, 32x |
| Sega CD / Mega CD | cue |
| Sega Genesis / Mega Drive | bin, gen, md, smd |
| Sega Master System | sms |
| Sega Saturn | cue, ccd, m3u |
| Sony PlayStation | cue, ccd, m3u |
| Sony PSP | iso, cso |
| Super Nintendo (SNES) | sfc, smc |
| TurboGrafx-16/PC Engine/SuperGrafx | pce |
| TurboGrafx-CD/PC Engine CD | cue, ccd |
| Virtual Boy | vb |
| Vectrex | bin, gam, vec |
| WonderSwan | ws, wsc |
The file already exists in the game library — duplicates cannot be imported.
The game already exists in the database but was previously manually deleted from the game library folder. DO NOT manually delete games from your Game Library folder. OpenEmu manages your library and games MUST be deleted through the app.
The file is not valid for any supported system, or the appropriate system has been hidden.
Compressed archives must not contain multiple files or optical disc media. Extract using The Unarchiver and import the resulting file.
The file is empty — zero bytes; likely the result of a corrupted download.
The file being referenced by the disc descriptor cannot be found — likely the result of a bad dump or edit. Instead, download known good dumps of the games from a "Redump" set on Archive.org
The disc descriptor file is not plain text. If M3U, follow the CD and M3U guide closely.
The file cannot be read due to permission problem. Choose Apple menu > System Preferences, click Security & Privacy then select the Privacy tab. Remove the existing Files and Folders permission for OpenEmu, if exists, and instead grant Full Disk Access.
The cue sheet file is not formatted correctly — the result of a bad dump or edit. Instead, download known good dumps of the games from a "Redump" set on Archive.org