Zip, RAR, 7-Zip, 아니면 Crate?

General-purpose zippers were built for documents and code. They do shrink an audio session — and then they stop, because a waveform is a wall of random bytes to them. Crate was built for one job: moving audio sessions. It reads the stems, packs them to roughly half the size of a zip, and proves every byte arrived perfectly.

Try it yourself: take a finished multitrack session, zip it, then pack it with Crate. Across the twenty real client sessions in our benchmark, the zip came out between 1.38 and 2.46 times the size of the .crate package. The zip is not doing nothing — it saved a median of 51.5% (per-session range 15–88%). It simply runs out of things to find, because a byte-level compressor never sees the waveform underneath.

Crate는 바이트를 압축하지 않습니다. 오디오를 디코딩해 무손실로 다시 인코딩하고(정수는 FLAC, 플로트는 WavPack), 파일 전반에서 반복되는 테이크와 바운스를 중복 제거하며, 반대편에서 정확한 쌍둥이를 다시 만듭니다 — SHA-256으로 샘플 단위까지 확인하면서요.

나란히 비교

	Zip	RAR	7-Zip	Crate
오디오를 이해함	—	—	—	예
패킹 후 크기, 원본 대비 비율	45.2%	30.9%	35.1%	25.2%
사본이 비트 단위로 정확함을 증명	—	—	—	SHA-256
파일 전반에서 테이크를 중복 제거	—	—	부분적	예
드롭한 아카이브를 열어 안의 오디오를 패킹합니다	—	—	—	예
업로드 크기에 맞춘 볼륨으로 분할	—	예	예	예
불안정한 전송을 위한 복구 데이터	—	예	—	예
받는 사람이 무료로 열 수 있음	예	예	예	예
파일이 회원님의 기기를 벗어나는가	아니요	아니요	아니요	아니요

Percentages are the packed size as a share of the original session — lower is smaller. Figures are pooled across the eleven mixed sessions of the current benchmark, every archiver at its strongest setting (zip -9, RAR -m5 -s -md1g, 7-Zip -mx=9, Crate on Smallest), every result restored and compared byte for byte. Per-session ranges are wider — the Impact page carries them lane by lane.

벤치마크

One run, one machine, nothing else running. Twenty real client sessions — mixed, loop-heavy, stem exports and dense live recordings — each packed by Crate on both of its presets and by ten other archiver configurations set for maximum compression, every run restored and compared byte for byte. Sessions are pooled into four material classes so no one session can stand in for the rest. The full tables are on the Impact page, engine by engine.

1.38–2.46×

the size of a zip of the same session, across all twenty measured

5.5–8.8×

faster to pack than RAR at maximum settings, on the pilot corpus measured at these documented settings

72%

typical reduction on a session of 1 GB or more, across 301 production packs

The ranges overlap because the sessions differ, not because the engines do — every engine packed the same twenty sessions. Pooled on the mixed-class lane, the zip came out 1.79 times the size of the .crate package. Same files, same machine, same clock.

왜 이 차이가 생기는가

A zipper looks for repeated byte patterns, and a session does hold some: headers, long stretches of silence, whole files that appear twice. That is worth the 15 to 88% a zip finds on audio sessions — about half, at the median — and then the search is over, because the low bits of a 24-bit WAV are noise to it. Crate instead does what an audio engineer would: it reads the actual waveform, stores it in a lossless audio codec, notices when two tracks are the same take (on by default) and — on the Smallest preset — when a bus is the sum of its stems, keeping only what's unique. Then it reassembles a byte-identical copy and proves it.

그래서 Crate는 무손실에 관해 정직할 수 있습니다: “무손실”은 포장에 적힌 약속이 아니라, 매번 모든 파일에 대한 SHA-256 검사입니다.

압축기로 충분할 때

MP3 몇 개, PDF 하나, 코드 폴더를 보낸다면 zip을 쓰세요 — 어디에나 있고 절감은 의미가 없을 테니까요. Crate는 진짜 세션을 옮기는 순간 제값을 합니다: 많은 트랙, 큰 WAV, 느리거나 비싼 연결, 그리고 손상된 업로드 하나로 무너질 수 없는 마감이 있을 때요.

Crate 무료 다운로드 작동 방식 보기

다운로드도 받기도 무료. 패킹은 $25 한 번 — 계정은 영원히 필요 없습니다.