[NES] .unf

I discovered today that none of the NES cores will play roms with the .unf file extenstion. I have to rename them to .nes, which is kind of a PITA when all my roms are archived in separate .zips

Is there something Im missing?

That would be up to the individual cores to support. If the cores already support it and they’re just not showing up in the list of files available, that’s pretty easy to correct.

Do they actually play when renamed to .nes?? I was under the impression that UNIF was a complete departure from iNES headers, which would leave most emulators unable to discern mappers, etc.

Which set is this, btw?

Yes, the ones Ive tried do play fine (in the nestopia core at least) once renamed to .nes

If I leave them with .unf they get filtered out in the retroarch interface, If I load them anyway retroarch crashes.

Its just a handful of games that ungoodmerge pulled from goodnes 3.23b.

09/15/2015 08:20 AM 65,628 75 Bingo (Sachen-English) [U].unf 09/15/2015 08:24 AM 98,625 Auto-Upturn (Sachen) [U][!].unf 09/15/2015 08:27 AM 393,336 Boogerman II (Rex-Soft) [U][!].unf 09/15/2015 08:33 AM 196,735 Challenge of the Dragon (Sachen) [U][!].unf 09/15/2015 08:20 AM 49,272 Chess Academys (Sachen-JAP) [U][!].unf 09/15/2015 08:35 AM 49,285 Chinese Checkers (Sachen-USA) [U][!].unf 09/15/2015 08:24 AM 41,074 Dancing Blocks (Sachen) [U][!].unf 09/15/2015 08:36 AM 82,037 Final Combat (Sachen-USA) [U][!].unf 09/15/2015 08:32 AM 393,309 Gaiapolis (Sachen) [U][!].unf 09/15/2015 08:28 AM 65,655 Galactic Crusader (Sachen) [U][!].unf 09/15/2015 08:31 AM 65,665 Great Wall, The (Sachen) [U][!].unf 09/15/2015 08:27 AM 98,432 Happy Pairs (Sachen) [U][!].unf 09/15/2015 08:37 AM 327,797 Hell Fighter (Sachen) [U][!].unf 09/15/2015 08:25 AM 196,982 Indiana Jones and the Temple of Doom (U) (PRG1) [U][!].unf 09/15/2015 08:36 AM 98,618 Jovial Race (Sachen) [U][!].unf 09/15/2015 08:21 AM 393,312 Jurassic Boy 2 (Sachen) [U][!].unf 09/15/2015 08:25 AM 41,070 Locksmith (Sachen) [U][!].unf 09/15/2015 08:25 AM 262,228 Low G Man - The Low Gravity Man (U) [U][!].unf 09/15/2015 08:31 AM 32,879 Lucky 777 (Sachen) [U][!].unf 09/15/2015 08:36 AM 49,279 Magic Cubes (Sachen) [U][!].unf 09/15/2015 08:22 AM 41,077 Magic Mathematic (Sachen-NTSC) [U][!].unf 09/15/2015 08:32 AM 131,171 Mahjong World (Sachen) [U][!].unf 09/15/2015 08:21 AM 65,668 Master Chu & The Drunkard Hu (Sachen) [U][!].unf 09/15/2015 08:30 AM 655,471 Master Fighter VI’ (YOKO-Y1) [U][!].unf 09/15/2015 08:21 AM 65,651 Metal Fighter (Sachen) [U][!].unf 09/15/2015 08:24 AM 49,265 Millionaire (Sachen) [U][!].unf 09/15/2015 08:36 AM 524,394 Mortal Kombat II (YOKO) [U][!].unf 09/15/2015 08:27 AM 98,625 Olympic IQ (Sachen) [U][!].unf 09/15/2015 08:27 AM 24,691 Penguin & Seal, The (Sachen-HES) [U][!].unf 09/15/2015 08:21 AM 196,708 Po Po Team (Sachen) [U][!].unf 09/15/2015 08:19 AM 49,262 Poker II (Sachen) [U][!].unf 09/15/2015 08:27 AM 65,640 Poker Mahjong (Sachen) [U][!].unf 09/15/2015 08:27 AM 82,031 Pyramid II (Sachen) [U][!].unf 09/15/2015 08:27 AM 262,241 Q Boy (Sachen) [U][!].unf 09/15/2015 08:30 AM 131,171 Rockball (Sachen) [U][!].unf 09/15/2015 08:38 AM 554,363 San Guo Zhi II - WRTR v1.2 [U].unf 09/15/2015 08:28 AM 32,879 Sidewinder (Sachen) [U][!].unf 09/15/2015 08:28 AM 131,187 Silent Assault (Sachen-Joy Van) [U][!].unf 09/15/2015 08:19 AM 262,270 Silver Eagle (Sachen) [U][!].unf 09/15/2015 08:36 AM 65,671 Strategist (With Intro) (Sachen) [U][!].unf 09/15/2015 08:31 AM 1,048,673 Street Heroes (Sachen) [U][!].unf 09/15/2015 08:34 AM 65,854 Super Pang (Sachen) [U][!].unf 09/15/2015 08:34 AM 98,416 Super Pang 2 (Sachen) [U][!].unf 09/15/2015 08:32 AM 49,264 Taiwan Mahjong 16 (Sachen) [U][!].unf 09/15/2015 08:28 AM 65,653 Tasac (Sachen) [U][!].unf 09/15/2015 08:23 AM 131,432 Tecmo World Cup Soccer (E) [U][!].unf 09/15/2015 08:27 AM 65,657 Twin Eagle (Sachen) [U][!].unf 09/15/2015 08:28 AM 24,686 World of Card Game, The (Sachen) [U][!].unf

I looked through the goodnes archives and discovered that all the ones in question do have .nes counterparts I can use, ungoodmerge pulled the ones with .unf when they had (U) [!], where the ones with .nes were missing the region.

I really don’t know crap about the different extensions with roms, I just found it strange that they play when renamed and just crash everything when theyre not.

They do play fine in stand alone nestopia without renaming, just not the retroarch core.

do you have the NstDatabase.xml in your system/bios directory? If not, I suspect it might make them work with the RetroArch core, as well.

I didn’t.

I put it there now though and it doesn’t seem to make a difference.