Sega CD

nintendoboy96

I trying to boot up a couple of Sega CD games and I am coming across an issue. My issues is that I can't boot both of my Sega CD ROMS. I tried both .CUE file and .BIN file both won't start up. Want to make a note first. When I extract both of the game .7z file in creates it own folder. In that folder there is another folder. In that folder there there is the game. One as a .CUE file and .BIN file. I took all the files from both games and put them on the Sega CD file directory. Still nothing. I even starting the games with the Sega CD Bios, nothing. What am I doing wrong?

phillip_benoit

You'll need to make a m3u playlist
https://retropie.org.uk/docs/Sega-CD/#multi-disc-games

phillip_benoit

@phillip_benoit my bad, I didn't see the second part. I noticed that with some of the CD based emulators are picky about format. I'd try making CHDs. You'll still need that m3u for all the night trap discs.
https://retropie.org.uk/docs/CHD-files/#creating-chds-from-cd-roms

mitu

Please add some info about your setup, as detailed in https://retropie.org.uk/forum/topic/3/read-this-first.

Make sure the BIOS file is correct and it's copied to the right place ($HOME/RetroPie/BIOS or if you're using file shared - \\retropie\bios).
Linux filesystem is case sensitive, so check the .cue file's contents (a .cue is a simple text files) and make sure the referenced .bin file name is correct (i.e. there's no cd1.BIN in the file, while the filename is cd1.bin).

If you have none of the issues above are at fault, please provide a verbose log from the emulator - copy the log file on pastebin.com and provide the link.

nintendoboy96

@mitu I will do that now, thanks

nintendoboy96

@mitu Also, is there way I can delete stuff from RetroPie?

nintendoboy96

@mitu I am using a a Raspberry Pi 4 with 1GB of ram. I extracting the .7z file using .7zip file manager. I tried leaving them in and out the folders after IO extract them. I am also using windows 11 to get the files.

nintendoboy96

I also ran it with Pico Drive, still nothing

nintendoboy96

How do I access my verbose log on Retro Pie. Like I said I am using Raspberry Pi 4 with 1GB of ram

nintendoboy96

@phillip_benoit So Sonic CD has 35 Tracks. I converted all of them to .CHD. I still not able to play it. I want focus on Sonic CD more than Night Trap first

phillip_benoit

@nintendoboy96 were you able to get them all into a single chd?

nintendoboy96

@phillip_benoit no, there is a way to do that?

phillip_benoit

@nintendoboy96 https://retropie.org.uk/docs/CHD-files/ has instructions.
If you're doing it right, CHDMAN should read the cue file and add all the bin files. When you're done, you will have a single CHD file around 300 mb for Sonic CD. Plop that in the Sega CD folder and you should be good to go.

If there is still a problem, the next thing to check is the BIOS. This can be tricky because while while both the Sega CD emulators take the same BIOS, it needs to have a different name. Perform an MD5 checksum on your bios and make sure it's matched with the names and sums in this table:
https://retropie.org.uk/docs/Sega-CD/#checksums

Make sure your checksum matches one of the ones listed in the last column and that there are two copies of it. One with each file name from the first two columns. Then it's just a matter of selecting the other emulator. I've noticed that some of the 32x + CD games only work on one of the other. Thus far, I have not come across a chd that will boot on neither.

mitu

@nintendoboy96 said in Sega CD:

How do I access my verbose log on Retro Pie. Like I said I am using Raspberry Pi 4 with 1GB of ram

You can see how to do that here.

nintendoboy96

I compressed all of my Sega CD roms to a .CHD file. At first is still did not work. It turns out I had a bad Sega CD Bios files. So I search a YouTube video, a user linked another users video. That other gave a link to good batch of Sega CD files and now I am able to play Sonic CD. I will back them up to my Google Drive. Thank you guys for all your hellp.

phillip_benoit

@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.