For personal media libraries from legal sources (DVD/Blu-ray rips you own), follow this convention:

audio format, which uses six channels of sound (five full-bandwidth channels and one low-frequency effects channel). 72... (likely 720p) : Indicates the video resolution is , which is considered high definition (HD). Movie Summary Carry-On (2024)

The mention of MkvHub.Com suggests that this website is a hub or repository for MKV (Matroska Video) files, which are a type of multimedia container format known for their flexibility and ability to hold virtually any type of video, audio, and subtitle track.

Another issue is the safety and security of users' data. Free movie download sites can sometimes be breeding grounds for malware, viruses, and phishing scams. Users need to be cautious and ensure they have robust antivirus software installed.