diff --git a/src/main/java/org/archive/format/gzip/GZIPDecoder.java b/src/main/java/org/archive/format/gzip/GZIPDecoder.java
index ef2998a5..9a8f7451 100644
--- a/src/main/java/org/archive/format/gzip/GZIPDecoder.java
+++ b/src/main/java/org/archive/format/gzip/GZIPDecoder.java
@@ -75,7 +75,7 @@ public long alignOnMagic3(InputStream is) throws IOException {
 				// !??
 				// nope. are the next 2 possibilities?
 				if((lookahead[1] == GZIP_MAGIC_ONE) &&
-					(lookahead[2] == GZIP_MAGIC_TWO)) {
+					((lookahead[2] & 0xff) == GZIP_MAGIC_TWO)) {
 					// !12
 					keep = 2;
 				} else if(lookahead[2] == GZIP_MAGIC_ONE) {
diff --git a/src/main/java/org/archive/resource/MetaData.java b/src/main/java/org/archive/resource/MetaData.java
index fb3b24a4..9b7747d8 100755
--- a/src/main/java/org/archive/resource/MetaData.java
+++ b/src/main/java/org/archive/resource/MetaData.java
@@ -28,8 +28,8 @@ public MetaData(MetaData parentMetaData, String name) {
 			this.topMetaData = this;
 		} else {
 			topMetaData = parentMetaData.topMetaData;
+			parentMetaData.putChild(name, this);
 		}
-		parentMetaData.putChild(name, this);
 	}
 
 	public MetaData(String jsonString) throws JSONException {
diff --git a/src/main/java/org/archive/util/ByteOp.java b/src/main/java/org/archive/util/ByteOp.java
index fc27d04a..74a52f15 100755
--- a/src/main/java/org/archive/util/ByteOp.java
+++ b/src/main/java/org/archive/util/ByteOp.java
@@ -237,7 +237,7 @@ public static String drawHex(byte[] b, int bytesPerRow) {
 		return drawHex(b,0,b.length,bytesPerRow);
 	}
 	public static String drawHex(byte[] b, int offset, int length, int bytesPerRow) {
-		int rows = (int) Math.ceil(length / bytesPerRow);
+		int rows = (int) Math.ceil((double) length / bytesPerRow);
 		if(rows == 0) {
 			rows = 1;
 		}
diff --git a/src/main/java/org/archive/util/StreamCopy.java b/src/main/java/org/archive/util/StreamCopy.java
index 52523edc..53a1b812 100755
--- a/src/main/java/org/archive/util/StreamCopy.java
+++ b/src/main/java/org/archive/util/StreamCopy.java
@@ -27,7 +27,7 @@ public static long copy(InputStream i, OutputStream o, int bytes) throws IOExcep
 	}
 
 	public static long copyLength(InputStream i, OutputStream o, long bytes) throws IOException {
-		return copyLength(i,o,DEFAULT_READ_SIZE);
+		return copyLength(i,o,bytes,DEFAULT_READ_SIZE);
 	}
 
 	public static long copyLength(InputStream i, OutputStream o, long bytes, int readSize) throws IOException {