Learn - Gumlet
Thoughts, stories and ideas about video transcoding and streaming.
How to Translate Your Online Course into Multiple Languages (2026 Guide)
16 min read
Key Takeaways * Translate in layers: subtitles across the whole course first, translated audio on the lessons students rewatch, and full localization last. * Check your own demand data before picking languages. Enrollment countries, support questions in other languages, and refund notes tell you more than any market-size report. * One course with multiple audio and subtitle tracks costs less to maintain than a separate course copy per language, because every lesson update happens once. * AI
How to Prevent Students From Downloading Your Course Videos
16 min read
Key Takeaways * A dynamic watermark pasted into an LMS lesson editor shows the same text to every student, because a static embed cannot pass viewer identity into the player. * Kajabi, Teachable, and Thinkific keep lesson videos view-only by default, so the download toggle most creators worry about is usually already set correctly. * Teachable and LearnWorlds let students download entire courses through their official mobile apps, which is a separate setting from anything on the web player.
Video Hosting Cost for Online Courses: What You Pay Per Student (2026)
18 min read
Online course video hosting costs $0–$620/month in 2026, depending on usage and protection. Per student, annual costs range from $0.46–$3.71. Compare delivery limits, launch-month spikes, storage caps, and DRM fees before choosing a platform
DRM for Offline Video: Persistent Licenses on iOS & Android
18 min read
Offline DRM is not a single expiration date bolted onto a downloaded file. It's a second playback path with its own license type, its own storage rules, and, on both major mobile platforms, two independently configurable timers that most implementations collapse into one.
Why Video Downloader Extensions Fail on Protected HLS
18 min read
This article works through what the documented evidence, extension changelogs, GitHub issue trackers, and public failure reports actually show about six categories of tools against four levels of stream protection
White-Label Video Platforms: Complete Guide + 8 Best Options Compared
18 min read
Compare 8 white-label video platforms by branding depth, custom domains, API support, resale rights, export options, DRM, and pricing to find the right fit.
HDCP and Output Protection for Video: Why Premium Content Still Leaks on Windows
19 min read
Learn why DRM alone can still leave premium video exposed on Windows, how HDCP protects the output path, and what to test across monitors, docks, cables, and capture devices.
CENC Explained: How One Encrypted File Serves Widevine, PlayReady, and FairPlay
18 min read
Learn how Common Encryption (CENC) lets one encrypted video file work across Widevine, PlayReady, and FairPlay and why choosing cbcs is critical for Apple playback.
Adding Multi-DRM to Your Own Player: Widevine, FairPlay, and PlayReady via API (2026 Guide)
19 min read
Learn how to add Widevine, FairPlay, and PlayReady to your existing player using DRM license URLs, short-lived tokens, and EME-based configuration without rebuilding your player.
