diff --git a/.github/workflows/node-test.yml b/.github/workflows/node-test.yml
index 66e3abc03..16573d494 100644
--- a/.github/workflows/node-test.yml
+++ b/.github/workflows/node-test.yml
@@ -69,6 +69,7 @@ jobs:
       - path-filter
     if: ${{ needs.path-filter.outputs.changes == 'true' }}
     runs-on: ${{ matrix.os }}-latest
+    timeout-minutes: 10
     strategy:
       matrix:
         os: [ ubuntu, macos, windows ]
@@ -97,6 +98,7 @@ jobs:
       - path-filter
     if: ${{ needs.path-filter.outputs.changes == 'true' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     strategy:
       matrix:
         node-version: [ lts, 18, 16.7.0 ]
diff --git a/src/modules/candidateArchiveFileHasher.ts b/src/modules/candidateArchiveFileHasher.ts
index 56b13cc2e..72531f60e 100644
--- a/src/modules/candidateArchiveFileHasher.ts
+++ b/src/modules/candidateArchiveFileHasher.ts
@@ -83,7 +83,8 @@ export default class CandidateArchiveFileHasher extends Module {
                   return romWithFiles;
                 }
 
-                if (inputFile.equals(romWithFiles.getOutputFile())) {
+                const outputFile = romWithFiles.getOutputFile();
+                if (inputFile.equals(outputFile)) {
                   // There's no need to calculate the checksum, {@link CandidateWriter} will skip
                   // writing over itself
                   return romWithFiles;
@@ -103,7 +104,7 @@ export default class CandidateArchiveFileHasher extends Module {
                     );
                     // {@link CandidateGenerator} would have copied undefined values from the input
                     //  file, so we need to modify the expected output file as well for testing
-                    const hashedOutputFile = romWithFiles.getOutputFile().withProps({
+                    const hashedOutputFile = outputFile.withProps({
                       size: hashedInputFile.getSize(),
                       crc32: hashedInputFile.getCrc32(),
                       md5: hashedInputFile.getMd5(),
diff --git a/src/modules/candidateGenerator.ts b/src/modules/candidateGenerator.ts
index 3f3d046d9..baa8ee4ab 100644
--- a/src/modules/candidateGenerator.ts
+++ b/src/modules/candidateGenerator.ts
@@ -233,21 +233,6 @@ export default class CandidateGenerator extends Module {
       .filter(([, romWithFiles]) => !romWithFiles)
       .map(([rom]) => rom);
 
-    // If there is a CHD with every .bin file, then assume its .cue file is accurate
-    if (missingRoms.length > 0 && CandidateGenerator.onlyCueFilesMissingFromChd(
-      game,
-      foundRomsWithFiles.map((romWithFiles) => romWithFiles.getRom()),
-    )) {
-      const inputChds = foundRomsWithFiles
-        .map((romWithFiles) => romWithFiles.getOutputFile())
-        .filter((file) => file.getFilePath().toLowerCase().endsWith('.chd'))
-        .filter(ArrayPoly.filterUniqueMapped((file) => file.getFilePath()));
-      if (inputChds.length === 1) {
-        this.progressBar.logTrace(`${dat.getNameShort()}: ${game.getName()}: `);
-        return new ReleaseCandidate(game, release, foundRomsWithFiles);
-      }
-    }
-
     // Ignore the Game if not every File is present
     if (missingRoms.length > 0 && !this.options.getAllowIncompleteSets()) {
       if (foundRomsWithFiles.length > 0) {
@@ -317,13 +302,13 @@ export default class CandidateGenerator extends Module {
 
     // Filter to the Archives that contain every ROM in this Game
     const archivesWithEveryRom = [...inputArchivesToRoms.entries()]
-      .filter(([archive, roms]) => {
+      .filter(([inputArchive, roms]) => {
         if (roms.map((rom) => rom.hashCode()).join(',') === gameRoms.map((rom) => rom.hashCode()).join(',')) {
           return true;
         }
         // If there is a CHD with every .bin file, and we're raw-copying it, then assume its .cue
         // file is accurate
-        return archive instanceof Chd
+        return inputArchive instanceof Chd
           && !gameRoms.some((rom) => this.options.shouldZipRom(rom))
           && !gameRoms.some((rom) => this.options.shouldExtractRom(rom))
           && CandidateGenerator.onlyCueFilesMissingFromChd(game, roms);
diff --git a/src/modules/datGameInferrer.ts b/src/modules/datGameInferrer.ts
index 1921e5f5f..f65d7d246 100644
--- a/src/modules/datGameInferrer.ts
+++ b/src/modules/datGameInferrer.ts
@@ -190,12 +190,12 @@ export default class DATGameInferrer extends Module {
             .map((binFile) => path.join(path.dirname(cueFile.getFilePath()), binFile.name))
             .map((binFilePath) => rawFilePathsToFiles.get(binFilePath))
             .filter(ArrayPoly.filterNotNullish);
-
-          if (binFiles.length > 0) {
-            const gameName = DATGameInferrer.getGameName(cueFile);
-            return [gameName, [cueFile, ...binFiles]];
+          if (binFiles.length === 0) {
+            return undefined;
           }
-          return undefined;
+
+          const gameName = DATGameInferrer.getGameName(cueFile);
+          return [gameName, [cueFile, ...binFiles]];
         } catch {
           return undefined;
         }
@@ -239,12 +239,12 @@ export default class DATGameInferrer extends Module {
             .map((trackFilePath) => path.join(path.dirname(gdiFile.getFilePath()), trackFilePath))
             .map((trackFilePath) => rawFilePathsToFiles.get(trackFilePath))
             .filter(ArrayPoly.filterNotNullish);
-
-          if (trackFiles.length > 0) {
-            const gameName = DATGameInferrer.getGameName(gdiFile);
-            return [gameName, [gdiFile, ...trackFiles]];
+          if (trackFiles.length === 0) {
+            return undefined;
           }
-          return undefined;
+
+          const gameName = DATGameInferrer.getGameName(gdiFile);
+          return [gameName, [gdiFile, ...trackFiles]];
         } catch {
           return undefined;
         }
diff --git a/src/modules/fixdatCreator.ts b/src/modules/fixdatCreator.ts
index 0ec411e15..240d055f2 100644
--- a/src/modules/fixdatCreator.ts
+++ b/src/modules/fixdatCreator.ts
@@ -60,7 +60,7 @@ export default class FixdatCreator extends Module {
       try {
         fixdatDir = this.getDatOutputDirRoot(originalDat);
       } catch (error) {
-        this.progressBar.logWarn(`failed to: ${error}`);
+        this.progressBar.logWarn(`${originalDat.getNameShort()}: failed to get output directory: ${error}`);
       }
     }
     if (!await fsPoly.exists(fixdatDir)) {
diff --git a/test/igir.test.ts b/test/igir.test.ts
index 52879adbb..7c3c7b8c5 100644
--- a/test/igir.test.ts
+++ b/test/igir.test.ts
@@ -10,7 +10,12 @@ import ArrayPoly from '../src/polyfill/arrayPoly.js';
 import fsPoly from '../src/polyfill/fsPoly.js';
 import { ChecksumBitmask } from '../src/types/files/fileChecksums.js';
 import FileFactory from '../src/types/files/fileFactory.js';
-import Options, { FixExtension, GameSubdirMode, OptionsProps } from '../src/types/options.js';
+import Options, {
+  FixExtension,
+  GameSubdirMode,
+  InputChecksumArchivesMode,
+  OptionsProps,
+} from '../src/types/options.js';
 import ProgressBarFake from './console/progressBarFake.js';
 
 interface TestOutput {
@@ -143,17 +148,20 @@ describe('with explicit DATs', () => {
     }), new Logger(LogLevel.NEVER)).main()).rejects.toThrow(/no valid dat files/i);
   });
 
-  it('should copy and test', async () => {
+  it('should copy and test, without caching', async () => {
     await copyFixturesToTemp(async (inputTemp, outputTemp) => {
       const result = await runIgir({
         commands: ['copy', 'test'],
         dat: [path.join(inputTemp, 'dats', '*')],
         input: [path.join(inputTemp, 'roms')],
         inputExclude: [path.join(inputTemp, 'roms', 'discs')], // test archive scanning + matching
+        inputChecksumArchives: InputChecksumArchivesMode[InputChecksumArchivesMode.NEVER]
+          .toLowerCase(),
         output: outputTemp,
         dirDatName: true,
         dirGameSubdir: GameSubdirMode[GameSubdirMode.MULTIPLE].toLowerCase(),
         fixExtension: FixExtension[FixExtension.AUTO].toLowerCase(),
+        disableCache: true,
       });
 
       expect(result.outputFilesAndCrcs).toEqual([
@@ -178,7 +186,6 @@ describe('with explicit DATs', () => {
         [`${path.join('One', 'GD-ROM.chd')}|track02.raw`, 'abc178d5'],
         [`${path.join('One', 'GD-ROM.chd')}|track03.bin`, '61a363f1'],
         [`${path.join('One', 'GD-ROM.chd')}|track04.bin`, 'fc5ff5a0'],
-        [`${path.join('One', 'Lorem Ipsum.zip')}|loremipsum.rom`, '70856527'],
         [path.join('One', 'One Three', 'One.rom'), 'f817a89f'],
         [path.join('One', 'One Three', 'Three.rom'), 'ff46c5d8'],
         [`${path.join('One', 'Three Four Five', '2048')}|`, 'xxxxxxxx'], // hard disk
@@ -209,16 +216,19 @@ describe('with explicit DATs', () => {
     });
   });
 
-  it('should copy a 1G1R set', async () => {
+  it('should copy a 1G1R set, with a custom cache path', async () => {
     await copyFixturesToTemp(async (inputTemp, outputTemp) => {
       const result = await runIgir({
         commands: ['copy'],
         dat: [path.join(inputTemp, 'dats', 'one.dat')],
         input: [path.join(inputTemp, 'roms')],
+        inputChecksumArchives: InputChecksumArchivesMode[InputChecksumArchivesMode.ALWAYS]
+          .toLowerCase(),
         output: outputTemp,
         dirGameSubdir: GameSubdirMode[GameSubdirMode.MULTIPLE].toLowerCase(),
         single: true,
         preferParent: true,
+        cachePath: inputTemp,
       });
 
       expect(result.outputFilesAndCrcs).toEqual([
@@ -784,7 +794,7 @@ describe('with explicit DATs', () => {
         [`${path.join('One', 'CD-ROM.chd')}|CD-ROM.cue -> ${path.join('<input>', 'chd', 'CD-ROM.chd')}|CD-ROM.cue`, 'xxxxxxxx'],
         [`${path.join('One', 'Fizzbuzz.nes')} -> ${path.join('<input>', 'raw', 'fizzbuzz.nes')}`, '370517b5'],
         [`${path.join('One', 'Foobar.lnx')} -> ${path.join('<input>', 'foobar.lnx')}`, 'b22c9747'],
-        [`${path.join('One', 'GameCube NKit ISO.nkit.iso')}|5bc2ce5b.iso -> ${path.join('<input>', 'nkit', '5bc2ce5b.nkit.iso')}|5bc2ce5b.iso`, '5bc2ce5b'],
+        [`${path.join('One', 'GameCube NKit ISO.nkit.iso')}|GameCube NKit ISO.iso -> ${path.join('<input>', 'nkit', '5bc2ce5b.nkit.iso')}|GameCube NKit ISO.iso`, '5bc2ce5b'],
         [`${path.join('One', 'GD-ROM.chd')}|GD-ROM.gdi -> ${path.join('<input>', 'chd', 'GD-ROM.chd')}|GD-ROM.gdi`, 'f16f621c'],
         [`${path.join('One', 'GD-ROM.chd')}|track01.bin -> ${path.join('<input>', 'chd', 'GD-ROM.chd')}|track01.bin`, '9796ed9a'],
         [`${path.join('One', 'GD-ROM.chd')}|track02.raw -> ${path.join('<input>', 'chd', 'GD-ROM.chd')}|track02.raw`, 'abc178d5'],
@@ -1053,13 +1063,13 @@ describe('with inferred DATs', () => {
 
   it('should move to the same directory', async () => {
     await copyFixturesToTemp(async (inputTemp, outputTemp) => {
-      const inputDir = path.join(inputTemp, 'roms', 'raw');
+      const inputDir = path.join(inputTemp, 'roms');
       const inputBefore = await walkWithCrc(inputDir, inputDir);
 
       await runIgir({
         commands: ['move', 'test'],
         input: [inputDir],
-        output: inputDir,
+        output: '{inputDirname}',
       });
 
       await expect(walkWithCrc(inputDir, inputDir)).resolves.toEqual(inputBefore);
diff --git a/test/polyfill/fsPoly.test.ts b/test/polyfill/fsPoly.test.ts
index fc7eab67c..56b28c6a2 100644
--- a/test/polyfill/fsPoly.test.ts
+++ b/test/polyfill/fsPoly.test.ts
@@ -29,6 +29,52 @@ describe('isDirectory', () => {
   });
 });
 
+describe('isHardlink', () => {
+  it('should return true for a hardlink', async () => {
+    const tempFileTarget = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'target'));
+    const tempFileLink = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'link'));
+
+    try {
+      await fsPoly.touch(tempFileTarget);
+
+      await fsPoly.hardlink(tempFileTarget, tempFileLink);
+      await expect(fsPoly.isHardlink(tempFileLink)).resolves.toEqual(true);
+      await expect(fsPoly.isHardlink(tempFileTarget)).resolves.toEqual(true);
+    } finally {
+      await fsPoly.rm(tempFileTarget, { force: true });
+      await fsPoly.rm(tempFileLink, { force: true });
+    }
+  });
+
+  it('should return false for a symlink', async () => {
+    const tempFileTarget = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'target'));
+    const tempFileLink = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'link'));
+
+    try {
+      await fsPoly.touch(tempFileTarget);
+
+      await fsPoly.symlink(tempFileTarget, tempFileLink);
+      await expect(fsPoly.isHardlink(tempFileLink)).resolves.toEqual(false);
+      await expect(fsPoly.isHardlink(tempFileTarget)).resolves.toEqual(false);
+    } finally {
+      await fsPoly.rm(tempFileTarget, { force: true });
+      await fsPoly.rm(tempFileLink, { force: true });
+    }
+  });
+
+  it('should return false for a file', async () => {
+    const tempFile = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'temp'));
+    await fsPoly.touch(tempFile);
+    await expect(fsPoly.isHardlink(tempFile)).resolves.toEqual(false);
+    await fsPoly.rm(tempFile);
+  });
+
+  it('should return false for non-existent file', async () => {
+    const tempFile = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'temp'));
+    await expect(fsPoly.isHardlink(tempFile)).resolves.toEqual(false);
+  });
+});
+
 describe('hardlink', () => {
   it('should create a hardlink', async () => {
     const tempFileTarget = await fsPoly.mktemp(path.join(Temp.getTempDir(), 'target'));