A Look at the TerraOnion Mega SD - FPGA Sega CD and Flash Cartridge

I got my hands on a Terra Onion Mega SD this week, and sat down to put it through its paces. FPGA Sega CD goodness ensues....

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Episode Notes:

1. Units tested good with the Mega SD -
Model 1 and 2 US and Japanese Genesis/Mega Drive Systems.
Mega SG from Analogue

2. Units that work but do not have CD soundtracks without modification:
Sega Nomad
Retroad Compact Clones

3. In game menus and reset do not work with SMS or 32X games.

4. I got most of the Sega CD, SMS, and Genesis libraries on a 64GB micro SD card. The Mega SD supports up to a 400GB FAT32/exFAT micro SD card.

5. The Mega SD supports both the internal save area of the Sega CD, as well as the Back Up RAM Cart, both saved to the memory card on a per game basis. In effect, you can save until your hearts content.

6. Paired with a Mega SG, not only does it reduce the size and power consumption of the original combo, it also gives you nearly perfect Sega CD games in 1080p.

7. Music in this episode.
Opening - Batman Returns Driving Stage
2:00 - Ecco CD Jurassic Beach
6:18 - Devastator Track 5
9:29 - Sol Feace Cosmic Illusion
10:54 - Lords of Thunder Ending Credits

8. I tried a few 1st and 3rd party controllers with the device to check compatibility. I ran into no issues that I noticed.

9. I own 4 original Sega CD models. A Model 1 and 2 US Sega CD, and a Model 1 and 2 Japanese Mega CD. Of the 4, 3 have had failures of some kind, with 2 of those 3 currently not working correctly at the time of this video.

10. Mega SD was paid for with my own money and not sent to me free to review.