diff --git a/msg_hash.h b/msg_hash.h
index 30b2f31c0c..14fe002bc4 100644
--- a/msg_hash.h
+++ b/msg_hash.h
@@ -140,6 +140,8 @@ enum msg_file_type
    FILE_TYPE_LUTRO,
    FILE_TYPE_CHD,
    FILE_TYPE_WBFS,
+   FILE_TYPE_RVZ,
+   FILE_TYPE_WIA,
 
    FILE_TYPE_DIRECT_LOAD,
 
diff --git a/tasks/task_database.c b/tasks/task_database.c
index 9e2be50d23..28938574d7 100644
--- a/tasks/task_database.c
+++ b/tasks/task_database.c
@@ -504,6 +504,14 @@ static enum msg_file_type extension_to_file_type(const char *ext)
          string_is_equal(ext_lower, "wbfs")
       )
       return FILE_TYPE_WBFS;
+   if (
+         string_is_equal(ext_lower, "rvz")
+      )
+      return FILE_TYPE_RVZ;
+   if (
+         string_is_equal(ext_lower, "wia")
+      )
+      return FILE_TYPE_WIA;
    if (
          string_is_equal(ext_lower, "lutro")
       )
@@ -550,12 +558,10 @@ static int task_database_iterate_playlist(
             return task_database_gdi_get_crc(name, &db_state->crc);
          }
          break;
-      /* Consider Wii WBFS files similar to ISO files. */
+      /* Consider WBFS, RVZ and WIA files similar to ISO files. */
       case FILE_TYPE_WBFS:
-         db_state->serial[0] = '\0';
-         intfstream_file_get_serial(name, 0, SIZE_MAX, db_state->serial, sizeof(db_state->serial));
-         db->type            =  DATABASE_TYPE_SERIAL_LOOKUP;
-         break;
+      case FILE_TYPE_RVZ:
+      case FILE_TYPE_WIA:
       case FILE_TYPE_ISO:
          db_state->serial[0] = '\0';
          intfstream_file_get_serial(name, 0, SIZE_MAX, db_state->serial, sizeof(db_state->serial));
diff --git a/tasks/task_database_cue.c b/tasks/task_database_cue.c
index 79670f8a69..53908326ee 100644
--- a/tasks/task_database_cue.c
+++ b/tasks/task_database_cue.c
@@ -52,8 +52,10 @@
 
 static struct magic_entry MAGIC_NUMBERS[] = {
    { "Nintendo - GameCube",         "\xc2\x33\x9f\x3d", 0x00001c},
+   { "Nintendo - GameCube",         "\xc2\x33\x9f\x3d", 0x000074}, /* RVZ, WIA */
    { "Nintendo - Wii",              "\x5d\x1c\x9e\xa3", 0x000018},
-   { "Nintendo - Wii",              "\x5d\x1c\x9e\xa3", 0x000218},
+   { "Nintendo - Wii",              "\x5d\x1c\x9e\xa3", 0x000218}, /* WBFS */
+   { "Nintendo - Wii",              "\x5d\x1c\x9e\xa3", 0x000070}, /* RVZ, WIA */
    { "Sega - Dreamcast",            "SEGA SEGAKATANA",  0x000010},
    { "Sega - Mega-CD - Sega CD",    "SEGADISCSYSTEM",   0x000010},
    { "Sega - Saturn",               "SEGA SEGASATURN",  0x000010},
@@ -339,6 +341,15 @@ int detect_gc_game(intfstream_t *fd, char *s, size_t len, const char *filename)
    if (intfstream_read(fd, raw_game_id, 4) <= 0)
       return false;
 
+   if (string_is_equal_fast(raw_game_id, "RVZ", STRLEN_CONST("RVZ"))
+         || string_is_equal_fast(raw_game_id, "WIA", STRLEN_CONST("WIA")))
+   {
+      if (intfstream_seek(fd, 0x0058, SEEK_SET) < 0)
+         return false;
+      if (intfstream_read(fd, raw_game_id, 4) <= 0)
+         return false;
+   }
+
    raw_game_id[4] = '\0';
 
    /** Scrub files with bad data and log **/
@@ -816,9 +827,17 @@ int detect_dc_game(intfstream_t *fd, char *s, size_t len, const char *filename)
          && raw_game_id[1] == 'K'
          && raw_game_id[2] == '-')
    {
-
       if (length <= 8)
       {
+         /* For 8 chars serials in 'MK-xxxxx' format, we need to remove 'MK-' to match Redump database
+          * Sega GT being the only exception (MK-51053), we have to check if it's not that game first */
+         if (string_is_not_equal_fast(raw_game_id, "MK-51053", STRLEN_CONST("MK-51053")))
+         {
+            strncpy(s, raw_game_id + 3, 5);
+            s[5] = '\0';
+            cue_append_multi_disc_suffix(s, filename);
+            return true;
+         }
          strncpy(s, raw_game_id, 8);
          s[8] = '\0';
          cue_append_multi_disc_suffix(s, filename);
@@ -862,6 +881,15 @@ int detect_wii_game(intfstream_t *fd, char *s, size_t len, const char *filename)
       if (intfstream_read(fd, raw_game_id, 6) <= 0)
          return false;
    }
+
+   if (string_is_equal_fast(raw_game_id, "RVZ", STRLEN_CONST("RVZ"))
+         || string_is_equal_fast(raw_game_id, "WIA", STRLEN_CONST("WIA")))
+   {
+      if (intfstream_seek(fd, 0x0058, SEEK_SET) < 0)
+         return false;
+      if (intfstream_read(fd, raw_game_id, 6) <= 0)
+         return false;
+   }
    raw_game_id[6] = '\0';
 
    /** Scrub files with bad data and log **/