diff --git a/.gitattributes b/.gitattributes
index c53022a4d47..65bb0938f06 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -8107,6 +8107,11 @@ src/osd/windows/winutil.c svneol=native#text/plain
 src/osd/windows/winutil.h svneol=native#text/plain
 src/osd/windows/winwork.c svneol=native#text/plain
 src/regtests/chdman/chdtest.py svneol=native#text/plain
+src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_20_tracks_v4/in.chd -text
+src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_v4/in.chd -text
+src/regtests/chdman/input/copy_cd_cue_empty_v4/in.chd -text
+src/regtests/chdman/input/copy_cd_nrg_empty_v4/in.chd -text
+src/regtests/chdman/input/copy_cd_toc_empty_v4/in.chd -text
 src/regtests/chdman/input/createcd_cue_audio_silence_wav/in.cue svneol=native#text/plain
 src/regtests/chdman/input/createcd_cue_audio_silence_wav/silence.wav -text
 src/regtests/chdman/input/createcd_cue_audio_silence_wav_20_tracks/in.cue svneol=native#text/plain
@@ -8118,6 +8123,11 @@ src/regtests/chdman/input/createcd_nrg_empty/in.nrg -text
 src/regtests/chdman/input/createcd_toc_empty/data.bin -text
 src/regtests/chdman/input/createcd_toc_empty/in.toc svneol=native#text/plain
 src/regtests/chdman/input/createhd_1/in.params svneol=native#text/plain
+src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_20_tracks_v4/out.chd -text
+src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_v4/out.chd -text
+src/regtests/chdman/output/copy_cd_cue_empty_v4/out.chd -text
+src/regtests/chdman/output/copy_cd_nrg_empty_v4/out.chd -text
+src/regtests/chdman/output/copy_cd_toc_empty_v4/out.chd -text
 src/regtests/chdman/output/createcd_cue_audio_silence_wav/out.chd -text
 src/regtests/chdman/output/createcd_cue_audio_silence_wav_20_tracks/out.chd -text
 src/regtests/chdman/output/createcd_cue_empty/out.chd -text
diff --git a/src/regtests/chdman/chdtest.py b/src/regtests/chdman/chdtest.py
index aca814593ae..5bd641da501 100644
--- a/src/regtests/chdman/chdtest.py
+++ b/src/regtests/chdman/chdtest.py
@@ -72,6 +72,9 @@ for root, dirs, files in os.walk(inputPath):
 			f.close()
 			params = paramsstr.split(" ")
 			cmd = [chdmanBin, "createhd", "-f", "-o", tempFile] + params
+		elif d.startswith("copy"):
+			inFile += ".chd"
+			cmd = [chdmanBin, "copy", "-f", "-i", inFile, "-o", tempFile]
 		else:
 			print "unsupported mode"
 			continue
diff --git a/src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_20_tracks_v4/in.chd b/src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_20_tracks_v4/in.chd
new file mode 100644
index 00000000000..9cede819041
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diff --git a/src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_v4/in.chd b/src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_v4/in.chd
new file mode 100644
index 00000000000..73a5d7621d1
Binary files /dev/null and b/src/regtests/chdman/input/copy_cd_cue_audio_silence_wav_v4/in.chd differ
diff --git a/src/regtests/chdman/input/copy_cd_cue_empty_v4/in.chd b/src/regtests/chdman/input/copy_cd_cue_empty_v4/in.chd
new file mode 100644
index 00000000000..2454149c709
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diff --git a/src/regtests/chdman/input/copy_cd_nrg_empty_v4/in.chd b/src/regtests/chdman/input/copy_cd_nrg_empty_v4/in.chd
new file mode 100644
index 00000000000..06e5c0cc6fb
Binary files /dev/null and b/src/regtests/chdman/input/copy_cd_nrg_empty_v4/in.chd differ
diff --git a/src/regtests/chdman/input/copy_cd_toc_empty_v4/in.chd b/src/regtests/chdman/input/copy_cd_toc_empty_v4/in.chd
new file mode 100644
index 00000000000..94e4b9fe6fd
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diff --git a/src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_20_tracks_v4/out.chd b/src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_20_tracks_v4/out.chd
new file mode 100644
index 00000000000..5029267c6f4
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diff --git a/src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_v4/out.chd b/src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_v4/out.chd
new file mode 100644
index 00000000000..bff1b64c8b9
Binary files /dev/null and b/src/regtests/chdman/output/copy_cd_cue_audio_silence_wav_v4/out.chd differ
diff --git a/src/regtests/chdman/output/copy_cd_cue_empty_v4/out.chd b/src/regtests/chdman/output/copy_cd_cue_empty_v4/out.chd
new file mode 100644
index 00000000000..af63abb92dd
Binary files /dev/null and b/src/regtests/chdman/output/copy_cd_cue_empty_v4/out.chd differ
diff --git a/src/regtests/chdman/output/copy_cd_nrg_empty_v4/out.chd b/src/regtests/chdman/output/copy_cd_nrg_empty_v4/out.chd
new file mode 100644
index 00000000000..f1dd17c8648
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diff --git a/src/regtests/chdman/output/copy_cd_toc_empty_v4/out.chd b/src/regtests/chdman/output/copy_cd_toc_empty_v4/out.chd
new file mode 100644
index 00000000000..2a4b79ca2be
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