diff -r 0d39d995cb65 -r e6dd805197fa modules/mlv_rec/mlv_dump.c
--- a/modules/mlv_rec/mlv_dump.c	Tue Sep 18 07:54:06 2018 +0200
+++ b/modules/mlv_rec/mlv_dump.c	Thu Sep 20 12:07:48 2018 +0200
@@ -1239,6 +1239,33 @@
     }
 }
 
+static int seek_to_next_known_block(FILE * in_file)
+{
+    int read_ahead_size = 128 * 1024 * 1024;
+    uint8_t * ahead = malloc(read_ahead_size);
+    assert(ahead);
+
+    int read = fread(ahead, 1, read_ahead_size, in_file);
+    /* fixme: file_set_pos doesn't work */
+    fseek(in_file, -read, SEEK_CUR);
+    for (int i = 0; i < read; i++)
+    {
+        if (memcmp(ahead + i, "VIDF", 4) == 0 ||
+            memcmp(ahead + i, "AUDF", 4) == 0 ||
+            memcmp(ahead + i, "NULL", 4) == 0)
+        {
+            print_msg(MSG_INFO, "Next known block: %c%c%c%c at 0x%"PRIx64"+0x%x = ", ahead[i], ahead[i+1], ahead[i+2], ahead[i+3], file_get_pos(in_file), i);
+            fseek(in_file, i, SEEK_CUR);
+            print_msg(MSG_INFO, "0x%"PRIx64"\n", file_get_pos(in_file));
+            free(ahead);
+            return 1;
+        }
+    }
+
+    print_msg(MSG_ERROR, "Could not find any known block from 0x"PRIx64".\n", file_get_pos(in_file));
+    free(ahead);
+    return 0;
+}
 
 int main (int argc, char *argv[])
 {
@@ -2129,7 +2156,13 @@
             else
             {
                 print_msg(MSG_ERROR, "Invalid block size at position 0x%08" PRIx64 "\n", position);
-                goto abort;
+
+                /* attempt to seek to next valid block */
+                if (seek_to_next_known_block(in_file)) {
+                    goto read_headers;
+                } else {
+                    goto abort;
+                }
             }
         }
         
@@ -4080,6 +4113,11 @@
                 else
                 {
                     print_msg(MSG_INFO, "Unknown Block: %c%c%c%c, skipping\n", mlv_block->blockType[0], mlv_block->blockType[1], mlv_block->blockType[2], mlv_block->blockType[3]);
+
+                    /* this block might be bad; seek to next valid one */
+                    fseek(in_file, -mlv_block->blockSize, SEEK_CUR);
+                    seek_to_next_known_block(in_file);
+                    goto read_headers;
                 }
 
                 lua_handle_hdr(lua_state, mlv_block->blockType, "", 0);