@nintendoboy96 glad you got it going! For future reference, googling a md5 checksum will almost always get you to the file you need. Checksums use one of many algorithms to add up the 1s and 0s in a file making duplicate sums hard to come across. This is why a lot of software distribution platforms use it for verification. MD5 is long enough for it to be very effective with search algorithms.

Could be an emulator issue (regression) or a missing BIOS file ?

Please add more info about your setup, as requested in https://retropie.org.uk/forum/topic/3/read-this-first, and a verbose log from the emulator. Use pastebin.com for posting the contents of the log file.

That worked, thank you!

@mitu omg! i did it! thank you so much! you're a life saver! it was the emulator the whole time, thank you so much man... i was trying so hard just to get this one game to work since i got the retro pi and it finally works! i have so many great memories with this game including my family and now i can experience it all again.

@ilchymis
I would just like to add that the BIOS file for lr-genesis-plus-gx is different from the one for lr-picodrive.

It sounds like your lr-picodrive BIOS file is correct, while the one for lr-genesis-plus-gx is not (as mitu has suggested).

I'm pretty sure your issue is not the same as mine, since my BIOS files were correct. It simply couldn't find them due to mis-configuration.

@mitu , @lostless & @Clyde - You all are great. I swear I looked at the Sega CD Docs at least a dozen times, and my eyes just completely glossed over the order of the emulators/BIOS instructions. ROMS loading now without any issue.

Thanks again!!

@alphabetapie said in Sega CD Discs/M3U Failure?:

My question is, why does EmulationStation behave differently from screen to screen?

Because each system/platform has its own list of file extensions.

Thanks that fixed it.

OMG I am a moron. As is often the case it was user error and such a monumentally stupid one. The one thing I hadn't thought of since I last played Sega CD was I use a different controller. With this one I guess since in most systems it doesn't matter I have been pressing one of the face buttons to start instead of start, whereas it matters that it is actually the start button on Sega CD.

It is from MAME 0.205 (x64) release.

@Dezmancer See http://retropie.org.uk/forum/topic/2/forum-rules

We cant support 3rd party images. Ask the images author for help.

This looks awesome! I am definitely gonna be adding this to my RetroPie console. 😃

Also, can't wait to see version 3.0!

@TabularJoker Please, no links to ROM/copyrighted material (including copyrighted BIOS) and no request for such materials. It's in the forum rules.

Also, add more info about your system, as requested in https://retropie.org.uk/forum/topic/3/read-this-first.

You can easily check the checksum of a file (and compare to the one in the docs) using 7Zip -

.

@mitu gotcha

@nintendoGUY some of the people in this thread might be able to comment on it.

https://retropie.org.uk/forum/topic/8756/retro-game-stuff-talk

Do resize the picture and upload it though. It can help.

@lostless nahh, im not using filters i am aware of that, i have my pi hooked up to a crt direcly, i just have my boot config modified, so i have menus ate 480p and that switch for game to 240p. something like this https://retropie.org.uk/forum/topic/8476/retropie-240p-15-khz-rgb-scart-tv-guide/2

I was having the same problem so I started a segaCD games in verbose mode and noticed that it was looking for the BIOS in the segaCD roms folder instead of the BIOS folder. This was on a new machine I was setting up on Ubuntu 18.04. Not sure what has changed that made it look to ROMS instead of BIOS folder.

I am running RetroPie 4.4.4, have about 4 or 5 systems running, and that's about all.
UPDATE: Found the issue. The god-forsaken BIOS file was a .md file, I've got it solved.

@Darksavior Thanks!