But in 7z format? It drops to . That’s the difference between buying a new hard drive or not.
And the hero of that story? Not Sony. Not a game developer. It’s a piece of open-source software (7-Zip) and its ruthless, almost artistic love for eliminating redundancy.
But when you compress it with on Ultra settings ? That 700 MB Final Fantasy VII disc 1 can shrink to under 250 MB .
Enter (the open-source archiver behind .7z ). Unlike the ancient .zip or even .rar , 7z uses a LZMA (Lempel-Ziv-Markov chain algorithm) — a brain-meltingly smart compression method that doesn’t see files as files, but as streams of repeating patterns . The Magic Trick: Where 7z Shines Here’s where it gets interesting. When you compress a PS1 .bin with standard ZIP, you might save 10-15%. Meh.
When you rip that disc to a raw .bin file, you’re preserving everything —the game, the audio tracks, the useless filler, the ECC. That’s a chunky 700 MB file for a game whose actual unique data might be 200 MB.
Collectors worship 7z for another reason: . By packaging multiple discs of a multi-CD game (like Metal Gear Solid or Riven ) into a single 7z archive, the algorithm finds duplicate data across discs —character models, sound libraries, UI elements. The second disc might only add 100 MB of unique data, but 7z stores it as “same as disc 1, plus these changes.” The Catch (There’s Always a Catch) Nothing is free. The dark side of 7z and PS1 games is decompression time . To play that beautifully compressed game in an emulator (like DuckStation or ePSXe), you must extract it first. A 700 MB game compressed to 250 MB might take 2-3 minutes to decompress on an old laptop—and that’s if you have the RAM.
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But in 7z format? It drops to . That’s the difference between buying a new hard drive or not.
And the hero of that story? Not Sony. Not a game developer. It’s a piece of open-source software (7-Zip) and its ruthless, almost artistic love for eliminating redundancy. 7z ps1 games
But when you compress it with on Ultra settings ? That 700 MB Final Fantasy VII disc 1 can shrink to under 250 MB . But in 7z format
Enter (the open-source archiver behind .7z ). Unlike the ancient .zip or even .rar , 7z uses a LZMA (Lempel-Ziv-Markov chain algorithm) — a brain-meltingly smart compression method that doesn’t see files as files, but as streams of repeating patterns . The Magic Trick: Where 7z Shines Here’s where it gets interesting. When you compress a PS1 .bin with standard ZIP, you might save 10-15%. Meh. And the hero of that story
When you rip that disc to a raw .bin file, you’re preserving everything —the game, the audio tracks, the useless filler, the ECC. That’s a chunky 700 MB file for a game whose actual unique data might be 200 MB.
Collectors worship 7z for another reason: . By packaging multiple discs of a multi-CD game (like Metal Gear Solid or Riven ) into a single 7z archive, the algorithm finds duplicate data across discs —character models, sound libraries, UI elements. The second disc might only add 100 MB of unique data, but 7z stores it as “same as disc 1, plus these changes.” The Catch (There’s Always a Catch) Nothing is free. The dark side of 7z and PS1 games is decompression time . To play that beautifully compressed game in an emulator (like DuckStation or ePSXe), you must extract it first. A 700 MB game compressed to 250 MB might take 2-3 minutes to decompress on an old laptop—and that’s if you have the RAM.