diff --git a/src/gamesdb.d b/src/gamesdb.d
index 3cc13ed..e0ed2ff 100644
--- a/src/gamesdb.d
+++ b/src/gamesdb.d
@@ -5,7 +5,6 @@ import std.exception;
 import std.conv : to;
 import std.string : fromStringz, toStringz, empty;
 import std.format;
-import std.stdio;
 
 class SQLiteException : Exception {
 	this(int code, string msg1, string msg2, string file = __FILE__, size_t line = __LINE__) {
@@ -36,7 +35,6 @@ class GamesDB {
 
 		void* deleme = cast(void*)g_sqlite_db;
 		string memdb = "file:gamesdb?ptr=0x%s&sz=%d&freeonclose=false".format(deleme, g_sqlite_db.length);
-		stderr.writeln(memdb);
 		const int open_ret = sqlite3_open_v2(memdb.toStringz(), &m_db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_URI, "memvfs".toStringz());
 		if (open_ret)
 			throw new SQLiteException(open_ret, "opening in-memory database", sqlite3_errmsg(m_db).fromStringz.idup);
diff --git a/src/isotoserial.d b/src/isotoserial.d
index 6b200c1..7f92f25 100644
--- a/src/isotoserial.d
+++ b/src/isotoserial.d
@@ -1,24 +1,29 @@
 module isotoserial;
 
 import std.string : toStringz, fromStringz;
-import std.stdio;
 import std.exception;
 import std.conv : to;
 import std.stdint;
 
 extern(C) {
-	alias iso_listing_callback = int function(void*,const(char)*,int);
+	struct iso_extract_handle;
+	alias iso_listing_callback = int function(void*,const(char)*,int,int,iso_extract_handle*);
 	int scan_iso (const(char)* filename, iso_listing_callback callback, void* user_data);
+	void extract_file_from_iso (iso_extract_handle*, char*);
 
-	private int printer(void*, const(char)* path, int is_dir) {
+	private int printer(void* user_data, const(char)* path, int is_dir, int size, iso_extract_handle* h) {
 		auto spath = path.fromStringz;
 
-		writef("Entry \"%s\"", spath);
-		if (is_dir != 0) {
-			write(" (directory)");
+		if (!is_dir && spath == "/UMD_DATA.BIN") {
+			auto buff = new char[size];
+			extract_file_from_iso(h, buff.ptr);
+			string* out_str = cast(string*)user_data;
+			*out_str = buff[0..10].idup;
+			return 1;
+		}
+		else {
+			return 0;
 		}
-		write("\n");
-		return (spath == "/UMD_DATA.BIN" ? 1 : 0);
 	}
 }
 
@@ -29,9 +34,11 @@ public string iso_to_serial (string path) {
 	// NPJH-50465|0D506D389F2AA444|0001|G
 	// ULJM-05530|5A2E0CF722EF6299|0001|G
 
-	scan_iso(path.toStringz, &printer, null);
+	string retval;
+	scan_iso(path.toStringz, &printer, &retval);
+	return retval;
 
-	return "UCES-00356"; //Tekken Dark Resurrection
+	//return "UCES-00356"; //Tekken Dark Resurrection
 	//return "NPJH-50465"; //Hatsune Miku (missing from redump list)
 	//return "ULJM-05530"; //Undead Knights (missing from redump list)
 	//return "NPEG-00003"; //fl0w (missing from redump list)
diff --git a/src/main.d b/src/main.d
index fc8644f..1f78b92 100644
--- a/src/main.d
+++ b/src/main.d
@@ -5,10 +5,9 @@ import gamesdb;
 import isotoserial;
 
 int main() {
-	writeln("hello world");
 	Unique!GamesDB db = new GamesDB;
 
 	string serial = iso_to_serial("/home/michele/deleme/b-mikuex.iso");
-	writefln("Title for game %s is %s", serial, db.find_by_serial(serial));
+	writeln(db.find_by_serial(serial));
 	return 0;
 }
diff --git a/src/oldcode/isotoserial_old.d b/src/oldcode/isotoserial_old.d
new file mode 100644
index 0000000..680900d
--- /dev/null
+++ b/src/oldcode/isotoserial_old.d
@@ -0,0 +1,76 @@
+module isotoserial;
+
+import std.string : toStringz, fromStringz;
+import std.stdio;
+import std.exception;
+import std.conv : to;
+
+private enum LibarchiveRet : int {
+	ARCHIVE_EOF = 1, /* Found end of archive. */
+	ARCHIVE_OK = 0, /* Operation was successful. */
+	ARCHIVE_RETRY = (-10), /* Retry might succeed. */
+	ARCHIVE_WARN = (-20), /* Partial success. */
+	/* For example, if write_header "fails", then you can't push data. */
+	ARCHIVE_FAILED = (-25), /* Current operation cannot complete. */
+	/* But if write_header is "fatal," then this archive is dead and useless. */
+	ARCHIVE_FATAL = (-30), /* No more operations are possible. */
+}
+
+public class LibarchiveException : Exception {
+	this(LibarchiveRet code, string file = __FILE__, size_t line = __LINE__) {
+		super("libarchive error " ~ to!string(cast(int)code) ~ ": " ~ to!string(code), file, line);
+	}
+}
+
+extern(C) {
+	struct archive;
+	struct archive_entry;
+
+	archive* archive_read_new();
+	int archive_read_open_filename(archive*, const(char)* filename, size_t block_size);
+	int archive_read_next_header(archive*, archive_entry**);
+	int archive_read_data_skip(archive*);
+	int archive_read_free(archive*);
+	int archive_read_support_format_iso9660(archive*);
+	int archive_read_support_format_empty(archive*);
+	int archive_read_support_format_mtree(archive*);
+	int archive_read_support_format_raw(archive*);
+	int archive_read_support_format_tar(archive*);
+	int archive_read_support_format_all(archive*);
+	int archive_read_support_compression_none(archive*);
+	int archive_read_support_compression_all(archive*);
+	int archive_read_close(archive*);
+
+	const(char)* archive_entry_pathname(archive_entry*);
+}
+
+public string iso_to_serial (string path) {
+	archive* arc = archive_read_new();
+	scope(exit) archive_read_free(arc);
+
+	// open UMD_DATA.BIN
+	// examples:
+	// NPEG-00003|8F33052F02B34E56|0001|G
+	// NPJH-50465|0D506D389F2AA444|0001|G
+	// ULJM-05530|5A2E0CF722EF6299|0001|G
+	archive_read_support_format_iso9660(arc);
+	archive_read_support_format_empty(arc);
+	archive_read_support_format_raw(arc);
+	//archive_read_support_format_tar(arc);
+	archive_read_support_compression_none(arc);
+
+	const LibarchiveRet r = cast(LibarchiveRet)archive_read_open_filename(arc, path.toStringz, 10240);
+	if (r != LibarchiveRet.ARCHIVE_OK)
+		throw new LibarchiveException(r);
+	archive_entry* entry;
+	writefln("reading content of %s...", path);
+	while (archive_read_next_header(arc, &entry) == LibarchiveRet.ARCHIVE_OK) {
+		writefln("path: \"%s\"", archive_entry_pathname(entry).fromStringz);
+		archive_read_data_skip(arc);
+	}
+
+	return "UCES-00356"; //Tekken Dark Resurrection
+	//return "NPJH-50465"; //Hatsune Miku (missing from redump list)
+	//return "ULJM-05530"; //Undead Knights (missing from redump list)
+	//return "NPEG-00003"; //fl0w (missing from redump list)
+}
diff --git a/subprojects/isoinfo/src/isoinfo.c b/subprojects/isoinfo/src/isoinfo.c
index 914fd01..25fd70c 100644
--- a/subprojects/isoinfo/src/isoinfo.c
+++ b/subprojects/isoinfo/src/isoinfo.c
@@ -1561,7 +1561,7 @@ default_charset(void)
 		if (codeset != NULL)
 			free(codeset);
 
-#define	verbose	1
+#define	verbose	0
 		if (verbose > 0 && charset != NULL) {
 			error(_("Setting input-charset to '%s' from locale.\n"),
 				charset);