- Why can video exports take longer than the clip duration?
- Changing a codec, bitrate, crop, watermark, or audio mix requires decoding and re-encoding frames. Speed depends on clip length, resolution, codec, and your device.
- When can a video be trimmed without losing quality?
- A stream-copy trim can avoid re-encoding but may start on a nearby keyframe. Frame-accurate trimming generally requires re-encoding the selected section.
- Which format is safest for broad playback support?
- MP4 with H.264 video and AAC audio remains the broadest compatibility choice. Newer codecs can produce smaller files but may not play in older apps or devices.