I’ve thought about this before. Dunno how it would work, if it would even be cost effective.
Why not just use two lasers in an Optical drive and half writing time? Technically, if you burnt with two lasers simultaneously one starting at the centre, one going from the end to the middle - and burnt @ 6x, the disc would be done in 5 minutes. Thus almost obliterating any 16-20x drives speed and killing it for quality.
8x would make for 4 minute burns.
Am I dreaming? I know it would be complicated but if someone released a writer claiming it was the worlds fastest and best quality, everyone would wanna try it. Seeing as two lasers going @ 8x would be the fastest and also best quality - I see the manufacturers of such a drive would be getting some huge sales.
What’s your opinions on that idea?
BTW - also take into account that almost all media could be written far faster than usual using this method. More media would be supported and the drive makers would only ever have to tune the drive for 8x writing which would be so much easier than tuning it for ridiculous speeds like 20x.