This is likely a hexadecimal or internal cataloguing code used by digital archivers to identify a specific file volume or release batch.
This refers to Bakuage Sentai Boonboomger or similar high-energy Sentai series, though "Gozyuger" specifically evokes the 35th anniversary season, Kaizoku Sentai Gokaiger . In some archival circles, "Gozyuger" is used as shorthand or a mistranslation for specific anniversary-themed media. hikouninraws no 1 sentai gozyuger 01 e7d portable
Standard high-definition "raws" are often too large for mobile storage. A "portable" encode (often in .MP4 or .MKV with H.264 compression) allows fans to carry entire seasons on an SD card. This is likely a hexadecimal or internal cataloguing