@Ornitorick putting your es_systems.cfg is still better practise in /home/pi/.emulationstation as any update or new system you install will reset it otherwise. You'll just have to manually keep it in sync as new systems are added or updated

@Rascas thanks, ill give it a shot later tonight.

@herb_fargus

Thanks Herb, but no luck. Have tried it allready, but no effect.

Ok I found a way to do it: I use RomCenter and create a new database. Apart from DAT files for emulators, RomCenter comes with DAT files for specific systems, like CPS1 etc. I add the folder containing all my asorted roms. RomCenter will only show me the (working) roms for the system I set up the database for. I can then select all roms right-click and choose to copy them to a new folder, which is then my clean, sorted folder for that system.

@dankcushions my problem was to select and split roms into different folders for different systems (automatically).

I've been searching, finally found it.

@KyleBriggs not necessarily, but if they are original game files that the engine in the ports section utilises yes.

Please post support requests in the support area.

https://retropie.org.uk/forum/topic/3/read-this-first

also you posted in the wrong area - We have a section for support.

Its a 3.5 inch TFT from TinyLCD. I am trying to run the program without root I have worked on this for like a full week now with no progress at all. I am thinking of just buying a car backup screen and a converter from hdmi and calling it a day.
If you need anymore info, then you can just ask!

Generally speaking html5 games (or any web-based games for that matter) run like sludge on the pi.

I dont know what electron games are

If you are looking to port it Likelihood it will be a bit of manual work to port as most ports will essentially be starting from scratch. You can go the formal multiplatform route with C++ and SDL etc. or you can look into the love engine which has a pretty decent community for development but the game has to continually be developed to keep up with the love engine versions

@dankcushions Awesome. Thanking you kindly sir!

@dlcgiovanni
That error could be related to this:
https://retropie.org.uk/forum/topic/395/retropie-3-7-child-friendly-emulationstation-wont-start?page=1

thanks, successfully compiled it and soul calibur works in versus battle mode (2 players)!
download source from here:
https://github.com/RetroPie/reicast-emulator

just be sure to compile reicast in the /usr/local/bin/reicast directory and first install all the developer buildings before you type and enter "make clean && make":
sudo apt-get install
libasound2
libegl1-mesa-dev
libgles2-mesa-dev
libasound2-dev
mesa-common-dev
libgl1-mesa-dev

in the end you'll get two files in the shell/linux/ directory. you just need the reicast.elf. but rename reicast.elf to reicast (without file-ending) and copy it over to /opt/retropie/emulators/reicast.
but make a backup before you replace the old file.

@phillymadison
Drop the .cue and .bin files of the game into the segacd folder, yet I should advice you of something: Rpi2 and 3 has only 1GB of RAM and CD images has around 600mbs, as result the emulator can delay the loading of game and some sounds...
The best practices are extract the audio to wave format, keep the data into bin format and create a cue file (which contain the list of the files and also the type and which order those should be played), that way only loads the required audio file instead load the entire "CD", which improve the loading times of the sountrack a lot, the same can be applied to psx games as well.

The question is how you do that?

Pick an original CD or a CD image and open with isobuster (http://www.isobuster.com/)

Extract data into a folder

rename the data track into "name_of_the_game_track 1.bin"

rename the sound files into "name_of_the_game_track 2.wav", "name_of_the_game_track 3.wav", "name_of_the_game_track 4.wav", etc.
Try rename those in the right order.

Generate the Cue file by using the sega cue generator (http://www.racketboy.com/downloads/sega-cue-maker.htm)

Save the Cue file into the folder where the others files are, you can keep the name "game_of_the_game.cue"

Edit the /etc/emulationstation/es_systems.cfg and remove the ".bin" format from the platforms that uses CD's, to only show up the cue files on the game list, otherwise if you boot a bin file it wont load the sounds.

PS: it's important to rename the files, otherwise if you leave the files names simple as "track 1 and 2 and 3" it will overwrite with existent files from other games.

EDIT:
I forgot you also need BIOS and those are renamed differently according which emulator you use, you can find more about it here:
https://github.com/retropie/retropie-setup/wiki/Sega-CD