This is where 90% of failures occur.
Note: This guide focuses on legitimate viewing options and practical tips for getting a good-quality subtitle experience in Indonesian (Sub Indo).
Search for DMC 2008 Sub Indo .ass. The .ass (Advanced SubStation Alpha) format is preferable because it retains karaoke effects during Krauser’s songs. A good source is Neko-Subs or old Indo-Fansub archives.