RetroArch BIOSes
Based from libretro-core-info
Note
To use Super Game Boy
In /system For BSNES extract "SGB SFC for BSNES.zip" (already extracted) For Higan or nSide extract "SGB SFC for Higan or nSide.zip"
Missing files
SNK - Neo Geo CD (NeoCD) - All optional
"neocd/neocd_f.rom (Front Loader BIOS)" (sha1): a5f4a7a627b3083c979f6ebe1fabc5d2df6d083b "neocd/neocd_sf.rom (Front Loader BIOS (SMKDAN))" (sha1): c99c44a43bded1bff4570b30b74975601bd3f94e "neocd/neocd_st.rom (Top Loader BIOS (SMKDAN))" (sha1): d463b3a322b9674f9e227a21e43898019ce0e642 "neocd/neocd_sz.rom (CDZ BIOS (SMKDAN)) (sha1): 41ca1c031b844a46387be783ac862c76e65afbb3
Palm OS (Mu) - All optional
"palmos40-en-m500.rom (Palm OS 4.0)" (md5): f50e4d5e4d98dc831f2c34a9107651eb "palmos52-en-t3.rom (Palm OS 5.2.1)" (md5): de46ec84d9aabf655eabdf9b00a3845d "palmos60-en-t3.rom (Palm OS 6.0)" (md5): ? "bootloader-dbvz.rom (MC68VZ328 UART Bootloader)" (md5): 9da101cd2317830649a31f8fa46debec
If you have one of these missing files available, I will be happy if you send me a message to add it to the collection. :)