45c73d784c645e958dae0c911b0995d8.m4v

The string 45c73d784c645e958dae0c911b0995d8 is a 32-character hexadecimal string, which is the standard length for an .

: A key distinction is that M4V files can be protected by FairPlay DRM . If protected, the file will only play on authorized computers or devices associated with the purchasing Apple ID. 45c73d784c645e958dae0c911b0995d8.m4v

The format is a video container developed by Apple that is very similar to the MP4 format. 45c73d784c645e958dae0c911b0995d8.m4v