Hello - I need some help understanding something. I’m looking at two WEB-DL files from reputable groups that are identical in nearly all ways (see details below), except one file is noticeably larger than the other (2.8GB vs 3.47GB, for example). I thought WEB-DL’s should be the same size if they’re from the same source (AMZN in this instance), so I’m a little confused as to why there’s such a disparity in size when all else appears equal.

Any idea’s what could explain the difference in file size here? I’m assuming the FLUX file is older based on when it was first uploaded vs the NTb one. Could this have something to do with it?

Bonus question: Which file would you choose in this situation?

(1) 1080p.AMZN.WEB-DL.DDP2.0.H.264-NTb

  • FileSize…: 2.80 GiB
  • Duration…: 42 min 35 s
  • Video…: High@L4 | 1920x1080 @ 9 197 kb/s
  • Audio…: English Dolby Digital Plus | 2 CH @ 224 kb/s
  • Subtitle…: English / English.

(2) 1080p.AMZN.WEB-DL.DDP.2.0.H.264-FLUX

  • FileSize…: 3.47 GiB
  • Duration…: 42 min 12 s
  • Video…: High@L4 | 1920x1080 @ 11.3 Mb/s
  • Audio…: English Dolby Digital Plus | 2 CH @ 224 kb/s
  • Subtitle…: English.

Edit: Thanks for all the replies! For anyone who stumbles upon this later on with a similar question, there’s some really great replies in the comments below worth checking out. In my case, the file size difference was due to the difference in bitrate, where the bitrate differential is likely due to either (A) the region where the AMZN WEB-DL occurred (with different regions having different bitrates), or (B) the release group modifying the bitrate to fit a specific need (like limiting the file size). Knowing both release groups here tend to prioritize quality, I’m guessing the region is likely the main driver in the difference in bitrate size.

  • frank@lemmy.worldEnglish
    31·
    1 year ago

    My guess is the source file is the same sorce file, but some groups process the file to cut down the file size.

    • Monomate@lemm.eeEnglish
      9·
      1 year ago

      If there’s some re-encoding, would the file still be considerd “WEB-DL” at this point?

        • Monomate@lemm.eeEnglish
          1·
          1 year ago

          “Rip” implies re-enconding. Web-DL is the exact video stream as it is transmited, without any further re-encondings by the release group. Unless I’m wrong…?

    • blixo@lemmy.fmhy.mlOPEnglish
      1·
      1 year ago

      Process, meaning like encode? Or can it be processed in other ways that doesn’t alter the quality?

      I noticed that the smaller file is longer, interestingly enough. So there does appear to be some level of trimming I’m assuming, but I wouldn’t have expected the longer file to be the smaller one.

        • blixo@lemmy.fmhy.mlOPEnglish
          1·
          1 year ago

          Hi - just curious if you were able to look at the release notes for these releases (the NTb and FLUX ones) and whether or not you found out anything. If not, no worries, but I thought I’d check in.

          Also, I’m particularly interested because I noticed that the FLUX version has a season REPACK out there where the REPACK size is similar to the NTb file size, which makes me all the more curious about the original FLUX versions with the increased file size / bitrate (and whether that means better quality or not in this instance).