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* Every unique video frame and audio sample that the TASed system outputs to the user must be present in the video and audio streams, even if it requires variable framerate.
* Video dumping must not affect emulation in any way.
* It must be possible to dump all video frames and audio samples to a file without information loss.
** There must be a way to accurately dump pixel-perfect video without resizing, in the way it's originally provided by the system. If the output is meant to be filtered before being delivered, intended filtering is a part of required accuracy.
** Uncompressed encoding is preferred for audio, and lossless compression is preferred for video.
** Encoding techniques used for video dumping must provide maximum compatibility to guarantee that it would be easy to further encode the dump.
* It must be possible to have a guaranteed way to sustain perfect sync between video and audio for infinite time and infinite number of segments.
* It must be possible to dump in segments:
** It must be possible to start a new video segment every time resolution or framerate changes.
** If dumping method is WinAPI/Video-for-Windows based, it must be possible to start a new segment before the video file is 2GB in size.
* It's desirable to be able to add informational overlay to the dump, for example Lua drawings.