This clip of your redone technidisc looks good. More naturalistic with less popping colours than the original. These old formats always seem dark to me when they are on computer screens as compared to how bright they come out on televisions, so for me I would always go for boosting the brightness in a media player when playing back on computer something like this:
http://screenshotcomparison.com/comparison/73265
Although this extreme wouldn't be accurate