Parallels is not an emulator; it is a virtual machine. Also, it does not run programs directly. It instead allows you to run Windows in a box. The Windows installation is completely isolated from the rest of your system, so there is no exchange of files unless you specifically set up some form of file sharing. As such, saved games in Windows in Parallels will not automatically be transferred into the Mac version's folder.
If speaking of a Nintendo DS, it is a ROM file. It's like insides of the game card packed into a file, bootable by the DS or an emulator.
A ROM in general is .. well the file of the game. You need to put it on an emulator, like VBA, or download it on to a cartridge to work it.
Unzip the pokemon ROM and make sure it ends in .gba .gbc or .gb Start the emulator as you would any program. File->Open Locate your ROM file, select it and that's it, the game should start. Before playing any Pokemon game be sure to set the correct memory save type. Option > Emulator > Save type > 128KFlash and Automatic.
Download a Emulator called GBA in a RAR or ZIP file, I think you can get it from CoolROM.com. Then Extract it top the desktop. Once it has extracted put the ROM file into the roms folder that you extracted from the Emulator folder. It should be a ".GBA" file. Click on the logo that looks like a gameboy advance and once it prompts you to click on the cartrige, click on the Game you want. eg. Pokemon Emerald.GBA
You can't save using the in-game menu when you use an emulator. Instead, and this is for the VBA specifically, go to File > Save Game > and choose the slot you'd like to use. When you want to play the game you saved, open up the game file as per usual and then go to File > Load Game > choose your game.
I think you mean ROM files, which are virtual images of the cartridges used by game systems. You can open them with a game system emulator, like the Sega emulator Fusion or the SNES emulator ZSNES. "MESS" is another console emulator.
A SGM file is created when you Save a State using the VBA emulator to open this file you need to load the Firered game onto the VBA like normal then go under File then Load State a window will appear to the right showing all the States you have created select the correct State you want to load by clicking on it then the emulator will load up that State.
JUST DOWN LOAD THE GAME Using a PS2 emulator to play a PS2 game on a computer in not like playing it on the PS2. For the PC user you should be more concerned with the task and accomplishment because it will be very time consuming and take hours of work and you still might not complete the game
Unfortunetaly you can't. You can get a Windows setup on a Mac with Apples BootCamp drivers for a full native install or with an emulator like Parallels or VMWare that run in the background.
No PS2 games are on a DVD and not a Cd and you must have a DVD drive in your computer and then must download and create a file and play the file or illegally download the game. This would be after you download and set up a PCSX2 emulator and the PS2 Bios from your PS2 and needed for the emulator Yes, you sure can, as long as you have a good emulator. Try Emuland or romworld. they will point you in the right direction there. PCSX2 is still in beta but is considered to be the best PS2 emulator. Instead you suggest a site to locate an unnamed emulator and has factious capabilities that allow a positive answer. Not really . The use of an Emulator is not really playing PS2 games which are supposed to be fun and not a chore to work your way through and finally get to finish the game from start to finish. Every different game needs to be set up and worked. It's not like slapping them into a PS2. Emulators are out there that have completed games from start to finish. The PCSX2 considers a game playable no matter how much time, trouble, and effort it took. There are no Emulators that claim it is as easy as playing a PS2 or any that can play as many different game titles as even the less than perfect 80 GB PS3 consoles does and certainly not as well as the 60 GB PS3 did.
Use any dos emulator like DOSBox
This is usually caused by attempting to run a pirated ISO image of a game in a CD emulator like Alcohol 120% or Daemon Tools. This can be fixed by purchasing a legitimate copy of the game.