Fix transcoder utf8 decoder error handling

transcoder/transcode_dvd.py

@@ -294,7 +294,7 @@ def run_and_log_handbrake(dvd: Dvd, command) -> bool:
 
 # Handbrake often exits with returncode 0 even though it logged an error and transcoding was not successful
 def check_handbrake_log_for_error(dvd: Dvd):
-    with open(dvd.log_file, "r") as log_file:
+    with open(dvd.log_file, "r", encoding="utf-8", errors="ignore") as log_file:
         for line in log_file:
             if line.startswith("Encode failed"):
                 return True
@@ -328,7 +328,7 @@ def find_series_titles(dvd: Dvd):
     if proc.returncode != 0:
         return None
 
-    stdout = proc.stdout.decode("utf-8", errors="replace")
+    stdout = proc.stdout.decode("utf-8", errors="ignore")
 
     json_str = ""
     in_json = False