I think he's complaining about source quality, not your server which am sure is better.
No criticism intended, I think videos of MUM presentations an excellent idea.
Suggestion: future MUMs, get a high quality DVR/VCR on a tripod so you get really nice stable images.
Check lighting levels, is tricky because there is always a conflict between being able to see the LCD projector and enough light for the DVR image. Take along a couple of spotlights - you can adjust/overcome any inherent problems in the room lighting. Get either the DVR microphone closer to the speaker, or use an external mic.
Why not post the very best ones on Youtube as well, it's not a bad marketing strategy .. and free