Should ROMs be zip files?

i wouldn't recommend that you zip anything if you can can, I understand that mame/cps/neogeo arcade roms will be but you shouldn't apply any compression to them if you can help it too, just a plain archive zip file will work best.
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Are you supposed to unzip ROMs?

ROMS mostly come in compressed formats, such as ZIP or RAR.

Sometimes, it is easier to leave the ZIP file compressed, and just place in its own folder. All of the save files should go directly into the created folder, nicely organizing your ROMs.
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Do ROMs come in zip files?

. zip is supported for ROMs. Don't think you can zip CD images though.
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Do mame ROMs need to be unzipped?

Installing ROMs

ROM sets are stored as zipped files in the C:\Mame\roms folder. It is recommended that you keep them zipped, but if for some strange reason you want to extract them, the extracted files will need to be put into a folder named the same as the original zip.
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Is it better to store files as ZIP?

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files.
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Should ROMs be zip files?

What is the disadvantage of ZIP file?

The Disadvantages

They include file size limits, file type limits, corruption, and mobility issues. One of many disadvantages associated with ZIP archive files is compression limits. Some files cannot be compressed much more than they already are. This is especially true for MP3 files and JPG files.
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Do files lose quality when zipped?

Zip files use a type of compression called lossless compression—meaning they don't lose any information during compression or decompression. This is important for image files, mostly, and audio files that need to maintain quality after being downloaded.
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Are ROMs illegal if you own the game?

There is no legal precedent for ripping and downloading ROMs for games you own, though an argument could be made for fair use. To find out, we asked Derek E. Bambauer, who teaches Internet law and intellectual property at the University of Arizona's College of Law.
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Do RetroArch ROMs need to be unzipped?

RetroArch can load games from their zip files. However, if your game is in a RAR or 7Z file then it needs to be extracted. ROM sites tend to use those formats to compress CD based games and other large games. You can use 7-Zip (it's free) to extract them.
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Does MAME read zip files?

MAME can load files from PKZIP and 7-Zip archives (these must have . zip and . 7z file name extensions, respectively). A number of extensions to the PKZIP format are supported, including Zip64 for large archives, NTFS timestamps, and LZMA compression.
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Should I leave ROMs zipped?

I believe in all cases you have to unzip them into whatever the rom format is, the only reason you find them zipped up is to speed up download time I believe. There are a few systems you can use zip files with here they are.
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What file type are ROMs?

A ROM image, or ROM file, is a computer file which contains a copy of the data from a read-only memory chip, often from a video game cartridge, or used to contain a computer's firmware, or from an arcade game's main board.
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How to legally use ROMs?

Legal ROM is such that is acquired from legal sources. One way to acquire legal ROMs is backing up official copies of the games from owned physical medium using cart readers or modded consoles. As long as a physical copy is owned, it is considered to be legal to use a digital copy for personal use.
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Does it matter if a file is zipped?

The Advantages

First, zipped files save storage space and increase the efficiency of your computer. It's also an effective way to improve file transfers with email. You're able to send emails faster with smaller files. Furthermore, the ZIP file format will encrypt your data.
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Does ZIP damage files?

No, zipping a file cannot break it. Providing your zip file is not corrupted, it will reproduce the identical file when unzipped.
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Are you supposed to extract zip files?

In order to work with zipped files, they must be unzipped or extracted first. Windows has a built in program called Windows Compressed Folders which can do this for you.
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Does RetroArch recognize zip files?

Also, disc-based games (bin + cue pairs) will not work from an archive (*. zip, *. 7z, etc.), so make sure these are unzipped before launching. If you have checked all of these possibilities and it still doesn't work, please visit our Discord server or support Forum.
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What format do ROMs need to be in for RetroArch?

The primary file requirements for running RetroArch will be the game files, as well as BIOS files for systems that require them. Game files will be standard ROMs that you would use with any other emulator. RetroArch (generally) has the ability to use .zip or .7z files that will compress those ROM files as well.
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Has anyone gone to jail for ROMs?

But no one has ever been prosecuted for it – not even once. Mind you, websites sourcing ROMs have often been asked to shut down.
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Has Nintendo sued anyone for downloading ROMs?

Yes. Nintendo is infamous for protecting their brand and image. They have sued people for selling their old consoles, they've taken down numerous websites that hosted ROMs for old games, and they have no qualms whatsoever about suing the pants off a child (or rather, the legal guardian(s) of said child.)
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Are zip files risky?

ZIP files by filling them with immense quantities of data. Known as “ZIP Bombs,” these overloaded archives are intended to rapidly overwhelm and crash a system once opened, triggering Denial of Service (DoS) and sometimes opening the door to subsequent cyber-attacks.
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What is a ZIP file bomb?

A zip bomb (aka decompression bomb, compression bomb, archive bomb, or zip of death) is a malicious archive file that can disable a program or system when unpacked, because processing it requires too much memory or puts an excessive load on the CPU.
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What is better ZIP or RAR?

Typically, the RAR format provides better compression than ZIP, especially in the solid mode. WinRAR multi-volume archives in the RAR format allow more functions such as self-extracting archives.
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