From d9ac6fc45509f6437cd9788429ecd5c58cf15b5b Mon Sep 17 00:00:00 2001
From: Morilli <35152647+Morilli@users.noreply.github.com>
Date: Mon, 20 May 2024 19:47:46 +0200
Subject: [PATCH] attempt to fix fceux movie import hash check

---
 src/BizHawk.Client.Common/movie/import/IMovieImport.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/BizHawk.Client.Common/movie/import/IMovieImport.cs b/src/BizHawk.Client.Common/movie/import/IMovieImport.cs
index b3a5e8576b..189a50d72b 100644
--- a/src/BizHawk.Client.Common/movie/import/IMovieImport.cs
+++ b/src/BizHawk.Client.Common/movie/import/IMovieImport.cs
@@ -96,8 +96,8 @@ namespace BizHawk.Client.Common
 				using var rom = new HawkFile(result);
 				if (rom.IsArchive) rom.BindFirst();
 				var romData = (ReadOnlySpan<byte>) rom.ReadAllBytes();
-				if (romData.Length % 1024 == 512)
-					romData = romData.Slice(512, romData.Length - 512);
+				int headerBytes = romData.Length % 1024; // assume that all roms have sizes divisible by 1024, and any rest is header
+				romData = romData[headerBytes..];
 				if (matchesMovieHash(romData))
 					return SHA1Checksum.ComputeDigestHex(romData);