Guides

Practical references for planning, recording, exporting, and delivery.

• Aspect Ratios Explained: 16:9, 9:16, 1:1, and 4:3How aspect ratios are derived from pixel dimensions, what 16:9, 9:16, 1:1 and 4:3 mean in practice, and how to convert a frame between them without guessing.
• Best Bitrate for 1080p, 1440p, and 4K VideoThe upload bitrates YouTube and Vimeo actually publish for 1080p, 1440p and 4K, set side by side, plus the storage each one implies for your runtime.
• CBR vs VBR: Which Should Creators Use?What constant and variable bitrate mean in encoder documentation, how each affects predictability of file size, and which to choose for delivery or streaming.
• H.264 vs H.265: File Size, Quality, and CompatibilityWhat the two codec specifications are, what vendors actually document about decoder support, and how the codec choice reaches your file size.
• How Long Can You Record on 64GB, 128GB, 256GB, and 1TB?Recording time from card capacity and bitrate, worked for 64GB, 128GB, 256GB and 1TB, plus what a card speed class actually guarantees.
• How Much Storage Does 4K Video Use?How much storage 4K video needs, from bitrate and duration, with the arithmetic shown, published platform bitrates, and a calculator for your own numbers.
• How to Calculate Video Upload TimeConvert a file size and a connection speed into an upload time, and model protocol overhead and real-world efficiency without inventing a number.
• Mbps vs MB/s: Why the Difference MattersMegabits and megabytes differ by a factor of eight, and mixing them makes a transfer estimate eight times wrong. Here is the conversion and where it bites.
• Video Bitrate Explained: Mbps, Quality, and File SizeWhat bitrate actually measures, how Mbps converts to megabytes, why platforms publish bitrate tables, and how to pick a bitrate from a file size budget.
• Why Your Actual Video File Size Differs From the EstimateFour documented reasons an exported file misses a bitrate-based estimate: rate control, container overhead, unit systems and audio, each with the arithmetic.