Why no High-Density DVDR?

[churchie04]

I had an MSI dvd burner that HD (High-Density, not High-Def) burning capabilities for cd's which allowed you to put 1.4gb on a 700mb cd.

CAVEAT - CD's only readable on other HD drives, no standard drive can read it.

But I thought to myself, how awesome would it be to HD for DVDR and atleast one standalone player that could read the disk.

Shoot, even if a standalone player can't read it you could still use an HTPC system and be happy with it.

What hasn't this happend yet?

[QuaiBoy]

DVDs are basically high density CDs already. They've stretched as far as red laser can go, so far as putting data reliably on a disc with the proper amount of error correction. Look at how many people have problems with data integrity on DVDs vs. CDs.
I once read something to the effect that DVD burning is really emulating a stamped disc. Rather than creating physical pits we're changing the chemical composition of the dye to emulate a pit. I thought that this is a great way to look at DVD burning as a whole... it really is amazing it works at all.

-Evan-

[whitejremiah]

that and have you ever read the description of how they MAKE dvdr's and cdr's? im VERY surprised they work at all...it even SOUNDS a little.....unstable to say the least...basically they throw down a plastic piece, throw down some goop on top of it, throw down a metal piece, and throw a 2nd plastic piece on top of it, and spin it at high speeds..........i dunno about you guys, but that sounds a little unstable and prone to errors to me.