Lordmonkus

It's not impossible. If you are using a nightly build of PCSX2 some of the emulator settings in LB have to be changed, LB is setup for the official builds. Also, use the stand alone version of PCSX2 instead of the RA.

The RA Mame core has issues, most notably it can have troubles with controls. The RA doesn't have the Mame controller stuff stripped from the emulator so the RA controller stuff and Mames can interfere with each other.

I don't have an answer for you beyond making a backup of the core you need and replacing it when there is an update. This is just one of the many reasons we recommend using stand alone Mame over RA for arcade emulation.

The full Mame set contains all the NeoGeo, CPS1, CPS2 and a ton of other great arcade games anyone should want to have.

Update the core if you update the rom set, if you don't update the rom set then don't update the core. You want to match the version of Mame and the rom set as best as possible.

It doesn't pick a bad core, roms need to be compatible with the core / emulator version. Older arcade roms are not compatible with newer versions of FBA / FBN and Mame.

You don't need them all with a Non Merged set, each one is a different region, pick the regional version you want.

You do not need a full set at all but you have to be very careful with how you go about it. If you use a Non Merged Mame set to pull out individual games from it will make your life much easier. If you use a Split or Merged set it will be more tricky and time consuming because you will need to pull out any bios required and parent roms if using a clone region rom, ie: US version of Pac Man will require the Japan region Puck Man rom to work. Once you have your functioning set you want to use then you just import like regular consoles, not use the full set import tool.

It is highly unlikely they will work, they are extremely old and Mame as changed. I recommend downloading a full Mame set from the pleasuredome git io page and using an up to date Mame to go with it.

The solution is to not use this old and very much outdated emulator. I don't recall a time it ever worked through LB because it has its own GUI and did not support command line Launching of games. Just use Mame and a full Mame rom set, it has all of the NeoGeo games in it and you can use the LB auto generated playlists feature to have a NeoGeo playlist.

There's the Mupen64plus core which is built off the same code base. M64p was Mupen64 with a GUI and has been renamed to simple64 for whatever reason.

Don't use Project 64, use simple64 which is the continuation of m64p. https://simple64.github.io

Then it shouldn't do any duplicates, it should only add anything newly added to the set or changed status according to the filters selected.

Never unzip Mame roms. Did you watch this video guide ?

It should only import duplicates if you enable the box to force importing of duplicates.

I don't normally vote for feature requests on the bitbucket page but I did vote for this one.

If Retroarch with the GenesisGX core is not an option for whatever reason my suggestion for an alternative Genesis emulator I would suggest Mame, it's fantastic. Dear god why ? Just use Snes9x for SNES and for NES use Mesen or puNES, both are far better NES emulators.

If you are running Intel integrated graphics then upscaling the resolution may not run so well but try it out and see how it goes. Upscaling likes to be done on the GPU, upscaling on the CPU Is very performance unfriendly. None, all emulators simply bump the internal resolution like a regular PC game would.

Yes, load up a PS1 game and open the quick menu (F1 on keyboard or guide button on controller) and look for Core Options. In the Core Options you will find a setting for internal resolution. Performance may be impacted depending on the core you are using, for example if you are using the beetle software core it will be heavily impacted but if you use the beetle hardware core and you have some sort of GPU (not integrated graphics) the performance will be fine. This works with other cores as well such as the Mupen core for N64. You can use ePSXe if you prefer it for any reason but we tend to not recommend that emulator anymore, DuckStation is far better though ePSXe does have its place running on old slow hardware. Most emulators for 3D based systems has some sort of internal resolution scaling but you will have to check on case by case basis. All the big name ones have support for it.

The license file is the license file, it is no other files with it. Set up as many different LB installs as you like on computers you own and use the same license file with them.

A dedicated GPU would help a lot. It doesn't need to be super fancy either.

Email support@unbrokensoftware.com

Did you check the Libretro docs page for setting up the core ? Do you have the required bios ? https://docs.libretro.com/library/atari800/ The Atari 800 core is the only one for the 5200 but I recommend using Kat5200 which is a stand alone and is the easiest 5200 emulator to get setup IMHO. Altirra is also a great choice but a bit more finnicky to set up.

Feature requests belong on the bitbucket page, found at the top of the website under Help & Support > Request a Feature.