bluejay

Obviously, I will double and triple check all my designs and schematics to make sure I didn't screw something up along the way, and order enough parts to make 5 of each first. I don't like to gamble either. If they all work, I can sell the ones I don't keep and order more.

@carlsson That's a great idea! Designing Apple stuff never occurred to me but now that I think about it it's a much better way than Commodore stuff. Less competition in both number of other people manufacturing the stuff and the price range. I'll take a look at the stuff and see what I can do.

Yes, the Fast Load is a design I made a few days back, a clone of the Epyx Fast Load. Since I'll have to buy an EPROM programmer for the SD2IEC, I thought I might as well make better use of it. Since the design is simple I whipped up a gerber(needs some more work though to make the design less messy). I think $35 with an SD2IEC built in would be pretty competitive. The cartridge alone might not be profitable though.

Good luck! I suppose devices like Tapuino also could be worth looking into, what the market looks like and the demand for generic devices that take a SD card or USB stick and playback various file formats as audio to a computer that accepts those. I've used some cheap MP3 players for that but the last one stopped working and I haven't yet replaced it so last time I used a retired smartphone as my playback device.

Good luck!   I hope you sell some extras and make some $$$...And of course testing to make sure everything works is a very good idea,  but it sounds like you've got it covered...I tend to think more like Shawn too,  as in I don't think about what happens in the best scenario, but rather will I cover costs?, and then everything above that is icing on the cake

I'll probably be able to locate a cheap Wii bundle at a Goodwill somewhere since they're relatively common. But what makes me hesitate is the fact that prices are going up fast, especially the older Zelda games. I remember complaining at a video game store that A Link to the Past was too expensive at $20. Now they're going for $30 on ebay!

My best bet is my local video game store. I know the owner pretty well(because I used to visit the place so frequently) and I think I can convince him to sell me a Wii bundle with a bunch of games I want for cheap. But the thing is, by the time I'll be able to go there, I can make and sell various gadgets for Commodore computers and hopefully earn a few hundred bucks from it. That's enough dough to buy every Zelda game they have with some bargaining, perhaps even a Wii system. I dunno. I'll just buy a copy of OoT and hope that I can make as much money from selling RAM expansions as I hope.

Sounds like a plan!

Good luck!

Good luck on your venture!

Ok, quite the jet lag going from California to Korea?

I can get used to jetlag easily, but I have to go to American online school. It starts at 9AM California time, but 1AM Korea time. So I have to wake up at midnight and go to sleep sometime in the afternoon.

Ohhhh...

I've never heard it before so I can't pinpoint what is strange, except for the last chord seems like a surprise but perhaps it is on purpose.

Song of Storms is one of those songs that repeat over and over without a definite ending so I needed a way to end the song and the chord is just a placeholder until I can figure out how to fix the entire piece.

From what I could find, the majority of people putting this song to sheet music use the following chord progression:

(intro) Dm Em F Em (melody) Dm Em F Em Bb7 Dm Bb7 A Dm Em F Em Bb7 A (repeat)

I hate to read alto clef, but you seem to have the following progression:

(intro) Dm Em F Em (melody) Dm Em F Em Bb7 F Bb7 Am Dm Em F Em Bb7 F (repeat)

Try to change the chords in bold and see if it sounds more like you want.

Maybe it takes more than 3 hours?  Stick with it!

I suppose. I'm making Gerudo Valley at the moment and I plan on doing Lon Lon Ranch or the title theme after. Ballad of the Goddess can wait 'till I'm done with Ocarina of Time.

Yeah, that is a problem. If you knew your design and your manufacturing would be up for it, there probably would be no issues finding four buyers at $40 each but right now you're asking them to buy a lottery ticket. Personally I'm all set for expansions.

I'm probably gonna buy a small batch of 5 expansions first, and if it doesn't work I'll figure out what I did wrong, and when I figure it out I could redesign the board and have another 5 ordered. I hope that won't happen. I mean, the 32k RAM part I ripped the schematic off another project only with a redesigned board so I don't have much to worry about there except for the quality of the manufactured boards(some traces that go really near some solder pads I'm worried about). However, the SD2IEC part is much more complicated and I drew my own schematic. It uses a 40 pin DIP style ATmega 1284p, which is unusual for an SD2IEC but easier to deal with. It's also the most expensive part of the board with the most parts. If all else fails I could get rid of the SD2IEC and just sell my first design with the 32k RAM only for $10.

Agreed.

You really think it's ok to be clogging up 4 out of 10 of the status update slots with a bunch of nonsense keeping other users from sharing their status with everyone? I think it's pretty self important and rude of you to think you are entitled to 40 percent of the update window to yourself on a forum of 10k users. 

Then get a dog & name him Commodore.

Haha very funny ?

With Planet X3 on the horizon, I can see where you are coming from.

I didn't even know there was a specific Windows 10 port - I had a port about 12 years ago that just ran on Win 7.

Is the Win7 port true to the original? Wikipedia just said a Windows port, so I didn't know there were two.

SON OF A Biscuit Baker!

That price seems about right, as they are going for about that on e-bay.  Nice work!

Wargames...I forgot all about that game. I had for my ColecoVision as well.  That was a well done game.

@Max_Chatsworth Indeed. You need to be able to multitask, and I generally find it to be much more fun than Missile Command.

@bluejay Yeah...those games aren't even in the same category in my opinion. One is straight up arcade shooter and the other is strategy. 

I noticed how I only had 2 copper layers, and I got the price down to $2 for 5 boards. Maybe I'll order the board and some parts and sell them for $10 each. That'd be pretty price competitive, no?

Yeah, if you get them to work. I think anything below $25-30 is a good price, with the exception that many people with a bigger wallet would go for the more expensive cartridges that have all the ROM content and/or memory card device on top of the RAM expansion.

@carlsson Maybe I could slap on a SD2IEC circuit on the bit of extra space I have left over? I took a look at a few schematics and they don't seem terribly complicated.

Don't you just mash up bananas or avocados? Doesn't seem that complicated.

I thought they were those robot teddy bears in the Thundercats.

Almost all of them (at least all worth playing) are already dumped on Zimmers FTP.

A few carts have built-in copy protection in form of they're trying to overwrite themselves, but just about all of those have been patched so they run from RAM like SpiceWare mentioned.

Then there's software that allows me to write the ROM image into

Huh, they're all .prgs in the Zimmers archive; then I can simply load it and run it?

Yes, those are PRG files with the file size 8194 bytes. That means the first two bytes are the load address (usually $A000, or for 16K games the second part is $6000 or occasionally $2000) followed by the 8192 bytes data block.

You need to LOAD"file",8,1 and have the memory expansion set to BLK5 ($A000) and/or BLK3 ($6000). You might need to NEW between loading the files, and then SYS 64802 to cause a soft reset.

Too low volume? Too loud volume? Wrong speed? WAV needs to be inverted? Did you create or download the WAV files ready made?

I don't know... I downloaded them off the CoCo archive and played them and nothing works.

FWIW, I have successfully loaded WAVs from the PC sound card to my MC-10 as well as several other computers, but sometimes it is more picky than others about all those parameters.