Notices

Originally Posted by javicq

Seeing many of you are still having problems with CD games, here are some detailed instructions:

-First of all, you'll need the Sega CD BIOS. This is the software Sega CD used to operate the CD ROM unit. Since this is complex software, we can't just emulate it. And just like games ROMs, this is proprietary software I can't distribute freely. There are 3 versions of these BIOS: Japan (JP), Europe (EU) and North America (US). If you want to play CD games from all 3 regions, you'll need all 3 files.

US BIOS file must match ONE of these names:
us_scd2_9306.bin
SegaCDBIOS9303.bin
us_scd1_9210.bin

EU BIOS file must match ONE of these names:
eu_mcd2_9306.bin
eu_mcd2_9303.bin
eu_mcd1_9210.bin

JP BIOS file must match ONE of these names:
jp_mcd1_9112.bin
jp_mcd1_9111.bin

They can be individually zipped but the names must be kept (thus us_scd2_9306.bin becomes us_scd2_9306.zip, etc.) Also remember the filesystem is case sensitive.
How to find them? A quick prayer to Saint Google the Miraculous should suffice.
Once you have them, simply put them in /home/user/.picodrive/bios


-In order to play the actual game, it's best to create a new folder and put the game's iso and mp3 files there. Make sure the mp3 files have the same naming pattern of the iso file, followed by a dash/underscore/space and a track number. DO NOT DELETE OR EDIT TRACK NUMBERS. Make sure all files of a game are in the same folder.
Also notice that CD games CAN'T BE ZIPPED. In some rare cases you'll get the game to work, but then you won't have CD music.


-If you've done all this and your game still crashes sending you back to the main menu, recheck every step. Check your BIOS location. Check you have all 3 BIOS files. Check your BIOS names (remember - case sensitive). Make sure you unzipped the game first. Finally, if all this is OK, perhaps your BIOS or ISO files are corrupt.

Hope this helps.

Originally Posted by Ronaldo

/home/user/bios/

eu_mcd2_9306.bin
jp_mcd1_9112.bin
us_scd2_9306.bin


these are the 3 bios i have in my bios folder. hope it helps

Originally Posted by M A S T E R

Sorry for such a silly question but what is or how do you know what /home/user/bios is located? so i can tell you where mine is.

Originally Posted by cddiede

Okay, so on the linux file system, "/" tells you it's the very top of the file structure, so everything starts with that.

If you open the Terminal program on the N900 and type:
pwd
(this stands for "present working directory")
it'll report to you where you are at at that time. The default start location is called you "home directory" and will show as:
/home/user

The area that shows in the N900's graphical file manager as "N900" will show in the terminal as:
/home/user/MyDocs

In your home directory, there are several directories that contains settings and preferences for all of your applications. These directories have a "." in front of their name that usually makes then invisible, but you can still "cd" to them. So if you type:
cd /home/user/.picodrive
this would put you in the directory that contains your preferences and settings for the picodrive application.

In this directory, you can type:
mkdir bios
and that makes a new directory call bios. You now would have:
/home/user/.picodrive/bios

If you have (somehow) obtained SegaCD bios files from the magical google, and placed them on your N900 in the "N900" area of the phone, you would type this:
mv /home/user/MyDocs/*.bin /home/user/.picodrive/bios
(it'll yell some warning at you about preserving permissions, you can ignore that)
You now have the bios files in the right place to play SegaCD game .iso or .bin images.

If your magically obtained SegaCD bios files were dragged on to your N900's Memory card, then instead you would type:
mv /media/mmc1/*.bin /home/user/.picodrive/bios

Any questions?

Originally Posted by cjsegninir

Still not working. I'll have to download another rom and see, mine is definitely not working and now I have bios' scattered all over the place! lol