For a movie that is approximately 146 minutes long, a 476MB file size is very small. This suggests significant compression, which typically results in poor image clarity, artifacts, and lower audio fidelity.
This is a standard-definition resolution (640x480 pixels). While the tag "HDTC" claims a high-definition process was used, the final output at 480p is essentially DVD quality or lower. For a movie that is approximately 146 minutes
Advanced Audio Coding (AAC) is a standard compressed audio format. For a movie that is approximately 146 minutes
This prefix is not an official branding but rather a tag used by unofficial distribution groups to label their releases. Official Release Information For a movie that is approximately 146 minutes