Hi!
I'll combine a few answers in a single mail, to reduce traffic a bit.
>Ok, I didn't know that Memory Mapper of 128kb existed. But does someone
>have an MSX2 with 128kb of VRAM and only 128kb of Mapper?
Lots of people have one. I am one of them.
Philips 8235, 8245, 8250, 8255 and 8280 were all sold with 128K mapper.
>Beyond Metal Gear 2, do you know other Megarom games with 512kb of more?
Hydlide 3 is 512K.
ROM version of Royal Blood is 1MB.
>And nobody was interested in transforming MSX1 to MSX2?
I don't think any company ever offered such a conversion. Conversions from
MSX2 to MSX2+ were offered though. Some included only V9958, others
included new ROMs and/or internal MSX-MUSIC.
>But ROM cartridges are very expensive. A memory expansion with exactly the
>same format than Megarom games was a more intelligent solution than buying
>several cartridges. Why didn't people from Japan create a kind of Megaram?
Maybe they don't like doing illegal things?
Anyway, they did finally create one: the ESE-SCC. But it's main use is as a
RAMdisk/DOS2 cartridge.
The reason MegaRAM type cartridge was never developed in Europe is probably
that 128K and 256K machines (SONY700) were sold. A lot of people had their
MSXes memory expanded to run cracked megaROM games.
>There was another problem here in Brazil (and perhaps in Europe too):
>there was no japanese softwarehouses representatives here! What were we
>supposed to do?
In Europe, for a long time software was available in normal stores. But
around 1990 we had to rely on imports for games like SD Snatcher and Solid
Snake. I guess the European market was not profitable enough to make
English versions of those games. One of the reasons was the large-scale
copying.
>Do you know a FDC that supports 1.2Mb and 1.44Mb drives and is still being
>produced, and have good documentation?
Note that 3.5MHz is too slow to allow reading of 1.44MB disks. The "inner
loop" of the sector read routine is too slow to cope with the data flow. So
if you want to create 1.44MB drives for MSX, you either have to use 7MHz
Z80 or use some kind of buffer for reading sectors.
Bye,
Maarten
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