The string CBC39CF9 looks like part of a CRC32 or similar hash, sometimes used in file-sharing contexts. This suggests the file may have been obtained from unofficial sources, which often come with risks like malware, incorrect labeling, or poor video quality.
Distributed via physical media and specialized adult streaming platforms by Pink Pineapple . Kaede to Suzu The Animation Vol.3 -CBC39CF9--3-...