Here's a piece of video history that is not well remembered for very good reasons. It's astounding how much effort Hitachi put into this for what they got out of it but I speculate in this video as to why that was.
If anyone has an M2, get in touch! Would love to compare it.
(This video has audio issues due to air conditioning noise I couldn't fully eliminate, and several voiceovers I was forced into due to factual errors. Sorry!)
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Chapters:
00:00 Intro
01:30 Physical design
06:36 Accessories
09:29 Operation
12:27 Visual tests
16:23 Analog capture comparison
17:40 Design problems
21:42 Computer interfaces
25:03 Playback interface
26:14 Bundled software
31:12 Conclusion