ePUB is an e‑book format (used for novels, comics, magazines).

Here, the keyword says “x264epubl” – that makes no sense. Video codecs and e‑book formats do not mix.

Likely reasons for “epubl”:

No authentic video file ends with .epubl or contains ePUB inside the x264 label.

This is the crucial piece for collectors. EPUBL is likely a repack group or a specific tagging convention denoting a "portable" library setup.

In this context, "Portable" means the files are optimized for external drives, media servers (Plex/Jellyfin), or offline viewing on a laptop without an internet connection.

What this release typically includes:

This part is clear. The Amazing World of Gumball is an animated series created by Ben Bocquelet. Season 1 originally aired from May 2011 to March 2012. It contains 36 episodes.

Legitimate technical specs for Season 1 in HD:

So a genuine “1080p Web-DL” for Season 1 would be a streaming service rip, not a true native 1080p production (since the show was animated in a mix of resolutions).

A real, safe, non‑misleading filename for The Amazing World of Gumball Season 1 in 1080p Web-DL would be something like:

The.Amazing.World.of.Gumball.S01.1080p.WEB-DL.x264.AAC2.0-H264Troll.mkv

Or a better version:
The.Amazing.World.of.Gumball.S01E01.1080p.AMZN.WEB-DL.DDP2.0.H.264-NTb.mkv

Notice:

If you want to watch The Amazing World of Gumball Season 1 in high quality legally, here are your best options:

Those sources are where actual Web-DL rips originate from.

Most torrents and archives use HDTV rips, which come with network watermarks, censored frames, and compression artifacts. The Web-DL (Direct Download) changes the game.

Unlike a screen recording, a Web-DL is pulled directly from the source code of a streaming service (iTunes, Amazon, or Netflix). This means: