Here is a rip of a VHS tape from 1992 / 1993 brought to you by the Mean Machines Sega Magazine. Apologies for the stuttering sound at times. I guess VHS tapes just weren’t meant to last this long in perfect condition. The VHS tape box had this on it:
Sega Mega-CD Coming to a Mega Drive near you Early 1993.
Win an Incredible Sega Mega-CD! Details Inside.
Sega Mega-CD Brings You…
- 500 + Megabytes of real CD capacity
- REAL music,
- REAL voices,
- REAL sound effects.
- Can play audio CDs 68000 chips.
- Zooming, scaling and rotation. Nothing else moves, looks, plays or sounds like it.
Games previewed on this tape include: Night Trap, Sewer Shark, Make your own music video, Batman Returns and Cobra Command.
Today we have the disassembly of the Mega-CD dev unit I picked up recently. I’ll finish the photographing a little late this month or early next. Keep an eye out on the photo gallery for more photos as always. Incredible how they managed to sandwich in another board without that much of a compromise in height. Hope you enjoy poking around in this one as much as I’ll enjoy trying to remember where all the screws went…!
I finally found some space to get this beast up on the bench to make sure the basics work – and they do! At least as far as I can tell. It’s not like I have a degree for programming games or the time at the moment to learn. But we did get power on success. The SNASM2 card initialises correctly and gives us the OK to connect.
The above video gives an idea of the setup I was using. Powered by an Intel Pentium III processor clocked at 800MHz we conquered the world together. I’ll be disassembling the unit shortly, dumping the BIOS chips and taking a ton of photos. Stay tuned!
A big three parter on this one – Disassembly, desoldering and dumping the ROM. The mask ROM is labelled as MPR-15768-T and turned out to be 27C1024 compatible. Which is 1 megabit or 128 kilobyte from what I can gather.
As always you can view more details at the ASSEMblerforums here.