Russ-

Thanks for posting this zip file! Your TI-994A.CTG and your cartridge CTG's (ROMs) were the only set that I was able to get running on my Raspberry Pi 3 B+. I installed the TI 99 emulator from the experimental packages, then I installed the TI-994A.CTG and ROM files to the BIOS directory (I obtained the TI-994A.CTG from another source) but after I loaded games (CTGs), they didn't play. I went back and erased those on the raspberry pi and then I installed your files (pspti99.zip) and they worked perfectly! I have a collection of three old TI-994A consoles and a hundred cartridges. I also have the disk expansion box. I haven't used these for more than two decades! Thanks everyone for posting such great information on brining the TI system to Retropie/Raspberry PI.